| 1 |
<?php |
| 2 |
/** |
| 3 |
* Represents a vulnerability result. |
| 4 |
* |
| 5 |
* @package WP_Defender\Behavior\Scan_Item |
| 6 |
*/ |
| 7 |
|
| 8 |
namespace WP_Defender\Behavior\Scan_Item; |
| 9 |
|
| 10 |
use WP_Error; |
| 11 |
use Theme_Upgrader; |
| 12 |
use Plugin_Upgrader; |
| 13 |
use WP_Defender\Traits\IO; |
| 14 |
use WP_Defender\Model\Scan; |
| 15 |
use WP_Defender\Traits\Theme; |
| 16 |
use WP_Defender\Traits\Plugin; |
| 17 |
use Calotes\Component\Behavior; |
| 18 |
use WP_Defender\Traits\Formats; |
| 19 |
use WP_Defender\Model\Scan_Item; |
| 20 |
use WP_Defender\Component\Error_Code; |
| 21 |
use WP_Defender\Component\Security_Tweaks\WP_Version; |
| 22 |
use WP_Defender\Controller\Scan as Scan_Controller; |
| 23 |
|
| 24 |
/** |
| 25 |
* Represents a vulnerability result. |
| 26 |
*/ |
| 27 |
class Vuln_Result extends Behavior { |
| 28 |
|
| 29 |
use Formats; |
| 30 |
use IO; |
| 31 |
use Plugin; |
| 32 |
use Theme; |
| 33 |
|
| 34 |
/** |
| 35 |
* Checks if upgrade is possible based on the presence of fixed version in vulnerabilities. |
| 36 |
* |
| 37 |
* @param array $bugs The array of vulnerabilities to check. |
| 38 |
* |
| 39 |
* @return string The upgrade status ('disabled' or 'enabled'). |
| 40 |
*/ |
| 41 |
protected function upgrade_possible( array $bugs ): string { |
| 42 |
$upgrade = 'disabled'; |
| 43 |
foreach ( $bugs as $bug ) { |
| 44 |
if ( isset( $bug['fixed_in'] ) && '' !== $bug['fixed_in'] ) { |
| 45 |
$upgrade = 'enabled'; |
| 46 |
break; |
| 47 |
} |
| 48 |
} |
| 49 |
|
| 50 |
return $upgrade; |
| 51 |
} |
| 52 |
|
| 53 |
/** |
| 54 |
* Checks if a plugin upgrade is actually possible. |
| 55 |
* |
| 56 |
* First verifies that at least one vulnerability has a known fixed version, |
| 57 |
* then confirms WordPress's update API has an update available for the plugin. |
| 58 |
* This guards against showing an upgrade button when the plugin is already at |
| 59 |
* the latest version on wp.org, or when the plugin has been removed/closed. |
| 60 |
* |
| 61 |
* @param array $data The raw scan item data for the plugin. |
| 62 |
* |
| 63 |
* @return string The upgrade status ('disabled' or 'enabled'). |
| 64 |
*/ |
| 65 |
protected function plugin_upgrade_possible( array $data ): string { |
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// No known fixed version in vulnerability data — nothing to upgrade to. |
| 67 |
if ( 'disabled' === $this->upgrade_possible( $data['bugs'] ) ) { |
| 68 |
return 'disabled'; |
| 69 |
} |
| 70 |
|
| 71 |
// Ensure the update transient is current. wp_update_plugins() detects newly |
| 72 |
// installed/removed plugins and only fires an HTTP request to wp.org when |
| 73 |
// the plugin list has changed or the transient has expired; otherwise it |
| 74 |
// is effectively a no-op. |
| 75 |
wp_update_plugins(); |
| 76 |
$updates = get_site_transient( 'update_plugins' ); |
| 77 |
|
| 78 |
// If the slug is absent from the response, the plugin is either already |
| 79 |
// at the latest version on wp.org or is not available there (removed/closed). |
| 80 |
if ( ! isset( $updates->response[ $data['slug'] ] ) ) { |
| 81 |
return 'disabled'; |
| 82 |
} |
| 83 |
|
| 84 |
return 'enabled'; |
| 85 |
} |
| 86 |
|
| 87 |
/** |
| 88 |
* Converts the scan item information into an array for output. |
| 89 |
* |
| 90 |
* @return array |
| 91 |
*/ |
| 92 |
public function to_array(): array { |
| 93 |
$data = $this->owner->raw_data; |
| 94 |
if ( isset( $data['name'], $data['version'], $data['bugs'] ) ) { |
| 95 |
if ( 'wp_core' === $data['type'] ) { |
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// Check if the current WP version is the latest. |
| 97 |
$upgrade = ( new WP_Version() )->check() ? 'disabled' : 'enabled'; |
| 98 |
} elseif ( 'plugin' === $data['type'] ) { |
| 99 |
$upgrade = $this->plugin_upgrade_possible( $data ); |
| 100 |
} elseif ( 'theme' === $data['type'] ) { |
| 101 |
$upgrade = $this->upgrade_possible( $data['bugs'] ); |
| 102 |
} else { |
| 103 |
$upgrade = 'disabled'; |
| 104 |
} |
| 105 |
|
| 106 |
return array( |
| 107 |
'id' => $this->owner->id, |
| 108 |
'type' => Scan_Item::TYPE_VULNERABILITY, |
| 109 |
'file_name' => $data['name'], |
| 110 |
'short_desc' => sprintf( |
| 111 |
/* translators: %s: Version of WP core, plugin or theme. */ |
| 112 |
esc_html__( 'Vulnerability found in %s.', 'defender-security' ), |
| 113 |
$data['version'] |
| 114 |
), |
| 115 |
'details' => isset( $data['new_structure'] ) |
| 116 |
? $this->get_details_as_array( $data ) |
| 117 |
: $this->get_detail_as_string( $data ), |
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// Need for all scan items for WP-CLI command. Full path = base slug for this item. |
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'full_path' => $data['slug'], |
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'new_structure' => isset( $data['new_structure'] ) ? 'yes' : 'no', |
| 121 |
'upgrade' => $upgrade, |
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); |
| 123 |
} |
| 124 |
|
| 125 |
return array(); |
| 126 |
} |
| 127 |
|
| 128 |
/** |
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* Ignore the suspicious file for the current scan. |
| 130 |
* |
| 131 |
* @return array An array with a message indicating successful ignore. |
| 132 |
*/ |
| 133 |
public function ignore(): array { |
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$scan = Scan::get_last(); |
| 135 |
$issue_name = '<b>' . $this->get_issue_name( $this->owner->raw_data ) . '</b>'; |
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$res = $scan->ignore_issue( $this->owner->id ); |
| 137 |
if ( ! $res ) { |
| 138 |
return array( |
| 139 |
'type_notice' => 'error', |
| 140 |
'message' => $this->get_failed_ignore_result( $issue_name ), |
| 141 |
); |
| 142 |
} |
| 143 |
|
| 144 |
return array( |
| 145 |
'message' => sprintf( |
| 146 |
/* translators: %s: Scan issue name. */ |
| 147 |
esc_html__( 'You’ve successfully ignored the security issue related to %s.', 'defender-security' ), |
| 148 |
$issue_name |
| 149 |
), |
| 150 |
); |
| 151 |
} |
| 152 |
|
| 153 |
/** |
| 154 |
* Allow the suspicious file for the current scan. |
| 155 |
* |
| 156 |
* @return array An array with a message indicating successful restoration. |
| 157 |
*/ |
| 158 |
public function unignore(): array { |
| 159 |
$scan = Scan::get_last(); |
| 160 |
$issue_name = '<b>' . $this->get_issue_name( $this->owner->raw_data ) . '</b>'; |
| 161 |
$res = $scan->unignore_issue( $this->owner->id ); |
| 162 |
if ( ! $res ) { |
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return array( |
| 164 |
'type_notice' => 'error', |
| 165 |
'message' => $this->get_failed_restore_result( $issue_name ), |
| 166 |
); |
| 167 |
} |
| 168 |
|
| 169 |
return array( |
| 170 |
'message' => sprintf( |
| 171 |
/* translators: %s: Scan issue name. */ |
| 172 |
esc_html__( 'You’ve successfully restored the security issue related to %s.', 'defender-security' ), |
| 173 |
$issue_name |
| 174 |
), |
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); |
| 176 |
} |
| 177 |
|
| 178 |
/** |
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* Resolves the vulnerability issue based on the type of vulnerability. |
| 180 |
* |
| 181 |
* @return array|bool|WP_Error The resolved issue or an error if the issue type is not found. |
| 182 |
*/ |
| 183 |
public function resolve() { |
| 184 |
$data = $this->owner->raw_data; |
| 185 |
// Redirect for WordPress-type. |
| 186 |
if ( 'wp_core' === $data['type'] ) { |
| 187 |
return array( 'url' => network_admin_url( 'update-core.php' ) ); |
| 188 |
} elseif ( 'plugin' === $data['type'] ) { |
| 189 |
return $this->upgrade_plugin( $data['slug'] ); |
| 190 |
} elseif ( 'theme' === $data['type'] ) { |
| 191 |
return $this->upgrade_theme( $data['base_slug'] ); |
| 192 |
} |
| 193 |
|
| 194 |
// If type does not match. |
| 195 |
return new WP_Error( |
| 196 |
Error_Code::INVALID, |
| 197 |
esc_html__( 'Please try again! We could not find the issue type.', 'defender-security' ) |
| 198 |
); |
| 199 |
} |
| 200 |
|
| 201 |
/** |
| 202 |
* Upgrades the theme based on the provided slug. |
| 203 |
* |
| 204 |
* @param mixed $slug The slug of the theme to upgrade. |
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* |
| 206 |
* @return array|WP_Error An array with a message if the upgrade is successful or a WP_Error on failure. |
| 207 |
*/ |
| 208 |
private function upgrade_theme( $slug ) { |
| 209 |
$skin = new Silent_Skin(); |
| 210 |
$upgrader = new Theme_Upgrader( $skin ); |
| 211 |
$ret = $upgrader->upgrade( $slug ); |
| 212 |
|
| 213 |
if ( true === $ret ) { |
| 214 |
$model = Scan::get_last(); |
| 215 |
$model->remove_issue( $this->owner->id ); |
| 216 |
|
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do_action( 'wpdef_fixed_scan_issue', 'vulnerability', 'resolve' ); |
| 218 |
|
| 219 |
return array( 'message' => esc_html__( 'This item has been resolved.', 'defender-security' ) ); |
| 220 |
} |
| 221 |
|
| 222 |
// This is WP error. |
| 223 |
if ( is_wp_error( $ret ) ) { |
| 224 |
return $ret; |
| 225 |
} |
| 226 |
|
| 227 |
// Sometimes it returns false because of it could not complete the update process. |
| 228 |
return new WP_Error( |
| 229 |
Error_Code::INVALID, |
| 230 |
esc_html__( "We couldn't update your theme. Please try updating with another method.", 'defender-security' ) |
| 231 |
); |
| 232 |
} |
| 233 |
|
| 234 |
/** |
| 235 |
* Upgrade a plugin based on the provided slug. |
| 236 |
* |
| 237 |
* @param mixed $slug The slug of the plugin to upgrade. |
| 238 |
* |
| 239 |
* @return array An array with information about the upgrade status. |
| 240 |
* @since 2.8.1 |
| 241 |
*/ |
| 242 |
private function upgrade_plugin( $slug ): array { |
| 243 |
if ( null === $this->get_plugin_upgrade_path( $slug ) ) { |
| 244 |
return array( |
| 245 |
'type_notice' => 'error', |
| 246 |
'message' => esc_html__( |
| 247 |
'The plugin associated with this vulnerability is no longer installed.', |
| 248 |
'defender-security' |
| 249 |
), |
| 250 |
); |
| 251 |
} |
| 252 |
|
| 253 |
$skin = new Plugin_Skin(); |
| 254 |
$upgrader = new Plugin_Upgrader( $skin ); |
| 255 |
$result = $upgrader->bulk_upgrade( array( $slug ) ); |
| 256 |
|
| 257 |
if ( is_wp_error( $skin->result ) ) { |
| 258 |
return array( |
| 259 |
'type_notice' => 'error', |
| 260 |
'message' => $skin->result->get_error_message(), |
| 261 |
); |
| 262 |
} elseif ( $skin->get_errors()->has_errors() ) { |
| 263 |
return array( |
| 264 |
'type_notice' => 'error', |
| 265 |
'message' => $skin->get_error_messages(), |
| 266 |
); |
| 267 |
} elseif ( is_array( $result ) && isset( $result[ $slug ] ) && array() !== $result[ $slug ] ) { |
| 268 |
$model = Scan::get_last(); |
| 269 |
$model->remove_issue( $this->owner->id ); |
| 270 |
|
| 271 |
do_action( 'wpdef_fixed_scan_issue', 'vulnerability', 'resolve' ); |
| 272 |
|
| 273 |
return array( 'message' => esc_html__( 'This item has been resolved.', 'defender-security' ) ); |
| 274 |
} elseif ( false === $result ) { |
| 275 |
return array( |
| 276 |
'type_notice' => 'error', |
| 277 |
'message' => esc_html__( |
| 278 |
'Unable to connect to the filesystem. Please confirm your credentials.', |
| 279 |
'defender-security' |
| 280 |
), |
| 281 |
); |
| 282 |
} |
| 283 |
|
| 284 |
return array( |
| 285 |
'type_notice' => 'info', |
| 286 |
'message' => esc_html__( 'There is no update available for this plugin.', 'defender-security' ), |
| 287 |
); |
| 288 |
} |
| 289 |
|
| 290 |
/** |
| 291 |
* Return the installed plugin path for a safe, existing plugin slug. |
| 292 |
* |
| 293 |
* @param mixed $slug Plugin file relative to the plugins directory. |
| 294 |
* |
| 295 |
* @return string|null |
| 296 |
*/ |
| 297 |
private function get_plugin_upgrade_path( $slug ): ?string { |
| 298 |
if ( ! is_string( $slug ) || '' === $slug || 0 !== validate_file( $slug ) ) { |
| 299 |
return null; |
| 300 |
} |
| 301 |
|
| 302 |
$path = trailingslashit( WP_PLUGIN_DIR ) . $slug; |
| 303 |
|
| 304 |
return is_file( $path ) ? $path : null; |
| 305 |
} |
| 306 |
|
| 307 |
/** |
| 308 |
* Removes a vulnerability at the specified path. |
| 309 |
* |
| 310 |
* @param string $path The path of the vulnerability to remove. |
| 311 |
* |
| 312 |
* @return bool Returns true on successful removal, false otherwise. |
| 313 |
*/ |
| 314 |
private function remove_vulnerability( string $path ): bool { |
| 315 |
if ( is_dir( $path ) ) { |
| 316 |
return $this->delete_dir( $path ); |
| 317 |
} else { |
| 318 |
// Sometimes a plugin consists of one file. |
| 319 |
wp_delete_file( $path ); |
| 320 |
return true; |
| 321 |
} |
| 322 |
} |
| 323 |
|
| 324 |
/** |
| 325 |
* Removes a plugin based on the provided data, checking if it is active and has the necessary permissions. |
| 326 |
* |
| 327 |
* @param array $data An array containing information about the plugin to be removed. |
| 328 |
* |
| 329 |
* @return array An array with the status of the removal process and any related messages. |
| 330 |
*/ |
| 331 |
private function remove_plugin( array $data ): array { |
| 332 |
$active = $this->is_active_plugin( $data['slug'] ); |
| 333 |
if ( $active ) { |
| 334 |
return array( |
| 335 |
'type_notice' => 'error', |
| 336 |
'message' => esc_html__( 'This plugin cannot be removed because it is active.', 'defender-security' ), |
| 337 |
); |
| 338 |
} |
| 339 |
|
| 340 |
$abs_path = $this->get_abs_plugin_path_by_slug( $data['base_slug'] ); |
| 341 |
if ( file_exists( $abs_path ) && ! $this->remove_vulnerability( $abs_path ) ) { |
| 342 |
return array( |
| 343 |
'type_notice' => 'error', |
| 344 |
'message' => esc_html__( |
| 345 |
'Defender does not have enough permission to remove this plugin.', |
| 346 |
'defender-security' |
| 347 |
), |
| 348 |
); |
| 349 |
} |
| 350 |
|
| 351 |
$message = sprintf( |
| 352 |
/* translators: %s: Plugin name. */ |
| 353 |
esc_html__( '%s plugin', 'defender-security' ), |
| 354 |
'<b>' . $data['name'] . '</b>' |
| 355 |
); |
| 356 |
$this->log( $message . 'is deleted', Scan_Controller::SCAN_LOG ); |
| 357 |
$model = Scan::get_last(); |
| 358 |
$model->remove_issue( $this->owner->id ); |
| 359 |
|
| 360 |
do_action( 'wpdef_fixed_scan_issue', 'vulnerability', 'delete' ); |
| 361 |
|
| 362 |
return array( |
| 363 |
'collect_type' => true, |
| 364 |
'message' => $message, |
| 365 |
); |
| 366 |
} |
| 367 |
|
| 368 |
/** |
| 369 |
* Removes a theme from the system. |
| 370 |
* |
| 371 |
* @param array $data The data of the theme to be removed. |
| 372 |
* |
| 373 |
* @return array The result of the removal operation. |
| 374 |
*/ |
| 375 |
private function remove_theme( array $data ): array { |
| 376 |
if ( ! isset( $data['base_slug'] ) || ! is_string( $data['base_slug'] ) || '' === $data['base_slug'] || 0 !== validate_file( $data['base_slug'] ) ) { |
| 377 |
return array( |
| 378 |
'type_notice' => 'error', |
| 379 |
'message' => esc_html__( 'Invalid theme path.', 'defender-security' ), |
| 380 |
); |
| 381 |
} |
| 382 |
|
| 383 |
if ( ! array_key_exists( $data['base_slug'], wp_get_themes() ) ) { |
| 384 |
return array( |
| 385 |
'type_notice' => 'error', |
| 386 |
'message' => esc_html__( 'The requested theme is not installed.', 'defender-security' ), |
| 387 |
); |
| 388 |
} |
| 389 |
|
| 390 |
$active = $this->is_active_theme( $data['base_slug'] ); |
| 391 |
if ( $active ) { |
| 392 |
return array( |
| 393 |
'type_notice' => 'error', |
| 394 |
'message' => esc_html__( 'This theme cannot be removed because it is active.', 'defender-security' ), |
| 395 |
); |
| 396 |
} |
| 397 |
|
| 398 |
$abs_path = $this->get_path_of_themes_dir() . $data['base_slug']; |
| 399 |
$themes_dir = realpath( $this->get_path_of_themes_dir() ); |
| 400 |
$real_path = realpath( $abs_path ); |
| 401 |
if ( false === $themes_dir || false === $real_path || ! str_starts_with( |
| 402 |
$real_path, |
| 403 |
rtrim( $themes_dir, DIRECTORY_SEPARATOR ) . DIRECTORY_SEPARATOR |
| 404 |
) ) { |
| 405 |
return array( |
| 406 |
'type_notice' => 'error', |
| 407 |
'message' => esc_html__( 'Invalid theme path.', 'defender-security' ), |
| 408 |
); |
| 409 |
} |
| 410 |
|
| 411 |
if ( file_exists( $real_path ) && ! $this->remove_vulnerability( $real_path ) ) { |
| 412 |
return array( |
| 413 |
'type_notice' => 'error', |
| 414 |
'message' => esc_html__( |
| 415 |
'Defender does not have enough permission to remove this theme.', |
| 416 |
'defender-security' |
| 417 |
), |
| 418 |
); |
| 419 |
} |
| 420 |
|
| 421 |
$message = sprintf( |
| 422 |
/* translators: %s: Plugin theme. */ |
| 423 |
esc_html__( '%s theme', 'defender-security' ), |
| 424 |
'<b>' . $data['name'] . '</b>' |
| 425 |
); |
| 426 |
$this->log( $message . 'is deleted', Scan_Controller::SCAN_LOG ); |
| 427 |
$model = Scan::get_last(); |
| 428 |
$model->remove_issue( $this->owner->id ); |
| 429 |
|
| 430 |
do_action( 'wpdef_fixed_scan_issue', 'vulnerability', 'delete' ); |
| 431 |
|
| 432 |
return array( |
| 433 |
'collect_type' => true, |
| 434 |
'message' => $message, |
| 435 |
); |
| 436 |
} |
| 437 |
|
| 438 |
/** |
| 439 |
* Retrieves the vulnerability body text based on the provided bug data. |
| 440 |
* |
| 441 |
* @param array $bug An array containing information about the vulnerability. |
| 442 |
* |
| 443 |
* @return string The vulnerability body text. |
| 444 |
*/ |
| 445 |
protected function get_vulnerability_body( array $bug ): string { |
| 446 |
$text = '#' . $bug['title'] . PHP_EOL; |
| 447 |
$text .= '-' . esc_html__( 'Vulnerability type:', 'defender-security' ) . ' ' . $bug['vuln_type'] . PHP_EOL; |
| 448 |
if ( ! isset( $bug['fixed_in'] ) || '' === $bug['fixed_in'] ) { |
| 449 |
$text .= '-' . esc_html__( 'No Update Available', 'defender-security' ) . PHP_EOL; |
| 450 |
} else { |
| 451 |
$text .= '-' . esc_html__( |
| 452 |
'This bug has been fixed in version:', |
| 453 |
'defender-security' |
| 454 |
) . ' ' . $bug['fixed_in'] . PHP_EOL; |
| 455 |
} |
| 456 |
|
| 457 |
return $text; |
| 458 |
} |
| 459 |
|
| 460 |
/** |
| 461 |
* Returns the vulnerability details as a string. |
| 462 |
* |
| 463 |
* @param array $data The data containing the vulnerability details. |
| 464 |
* |
| 465 |
* @return string The vulnerability details as a string. |
| 466 |
*/ |
| 467 |
public function get_detail_as_string( array $data ): string { |
| 468 |
$strings = array(); |
| 469 |
foreach ( $data['bugs'] as $bug ) { |
| 470 |
$strings[] = $this->get_vulnerability_body( $bug ); |
| 471 |
} |
| 472 |
|
| 473 |
return implode( PHP_EOL, $strings ); |
| 474 |
} |
| 475 |
|
| 476 |
/** |
| 477 |
* Returns the details of vulnerabilities as an array. |
| 478 |
* |
| 479 |
* @param array $data The data containing information about vulnerabilities. |
| 480 |
* |
| 481 |
* @return array An array with vulnerability details including score and detail items. |
| 482 |
*/ |
| 483 |
public function get_details_as_array( array $data ): array { |
| 484 |
$arr = array(); |
| 485 |
foreach ( $data['bugs'] as $bug ) { |
| 486 |
$items = array( |
| 487 |
esc_html__( 'Vulnerability type:', 'defender-security' ) . ' ' . $bug['vuln_type'], |
| 488 |
); |
| 489 |
|
| 490 |
if ( ! isset( $bug['fixed_in'] ) || '' === $bug['fixed_in'] ) { |
| 491 |
$items[] = esc_html__( 'No Update Available', 'defender-security' ); |
| 492 |
} else { |
| 493 |
$items[] = esc_html__( 'This bug has been fixed in version:', 'defender-security' ) . ' ' . $bug['fixed_in']; |
| 494 |
} |
| 495 |
|
| 496 |
$arr[] = array( |
| 497 |
'score' => $bug['cvss_score'], |
| 498 |
'title' => '#' . $bug['title'], |
| 499 |
'items' => $items, |
| 500 |
); |
| 501 |
} |
| 502 |
|
| 503 |
return $arr; |
| 504 |
} |
| 505 |
|
| 506 |
/** |
| 507 |
* Delete inactive plugin or theme. |
| 508 |
* |
| 509 |
* @return array|WP_Error |
| 510 |
*/ |
| 511 |
public function delete() { |
| 512 |
$data = $this->owner->raw_data; |
| 513 |
// WP core, plugin or theme. |
| 514 |
if ( 'wp_core' === $data['type'] ) { |
| 515 |
return array( |
| 516 |
'type_notice' => 'error', |
| 517 |
'message' => esc_html__( 'WordPress core cannot be removed.', 'defender-security' ), |
| 518 |
); |
| 519 |
} elseif ( 'plugin' === $data['type'] ) { |
| 520 |
return $this->remove_plugin( $data ); |
| 521 |
} elseif ( 'theme' === $data['type'] ) { |
| 522 |
return $this->remove_theme( $data ); |
| 523 |
} |
| 524 |
|
| 525 |
// Sometimes it returns false because of it could not complete the remove process. |
| 526 |
return new WP_Error( |
| 527 |
Error_Code::INVALID, |
| 528 |
esc_html__( "We couldn't remove this item.", 'defender-security' ) |
| 529 |
); |
| 530 |
} |
| 531 |
} |
| 532 |
|
