| 1 |
<?php |
| 2 |
/** |
| 3 |
* Plugin functions |
| 4 |
* |
| 5 |
* @package WPVulnerability |
| 6 |
* |
| 7 |
* @version 2.0.0 |
| 8 |
*/ |
| 9 |
defined( 'ABSPATH' ) || die( 'No script kiddies please!' ); |
| 10 |
|
| 11 |
/** |
| 12 |
* Adds a vulnerability notice under vulnerable plugins. |
| 13 |
* |
| 14 |
* @since 2.0.0 |
| 15 |
* |
| 16 |
* @param string $plugin_file Main plugin folder/file name. |
| 17 |
* @param array $plugin_data Plugin data. |
| 18 |
* @param array $status Status. |
| 19 |
* |
| 20 |
* @return string $information HTML. |
| 21 |
*/ |
| 22 |
function wpvulnerability_plugin_info_after( $plugin_file, $plugin_data, $status ) { |
| 23 |
|
| 24 |
// Retrieve the vulnerabilities for all plugins from the options table and decode the JSON. |
| 25 |
$plugin_vulnerabilities = json_decode( get_option( 'wpvulnerability-plugins' ), true ); |
| 26 |
|
| 27 |
// Determine whether the plugin is active and add an appropriate CSS class to the table row. |
| 28 |
$tr_class = ''; |
| 29 |
if ( is_plugin_active( $plugin_file ) ) { |
| 30 |
$tr_class .= 'active'; |
| 31 |
} |
| 32 |
|
| 33 |
// Generate the vulnerability notice message with the plugin name. |
| 34 |
$message = sprintf( |
| 35 |
/* translators: 1: Plugin name */ |
| 36 |
__( '%1$s has a known vulnerability that may be affecting this version.', 'wpvulnerability' ), |
| 37 |
wp_kses( $plugin_data['Name'], 'strip' ) |
| 38 |
); |
| 39 |
|
| 40 |
// Begin generating the table row HTML markup with appropriate CSS classes and the vulnerability notice message. |
| 41 |
$information = '<tr class="wpvulnerability ' . $tr_class . '">'; |
| 42 |
$information .= '<td colspan="4">'; |
| 43 |
$information .= '<p class="text-red"><img src="' . esc_url( WPVULNERABILITY_PLUGIN_URL ) . 'assets/logo16.png" style="height: 16px; vertical-align: text-top; width: 16px;" alt="" title="WPVulnerability"> <strong>' . $message . '</strong>'; |
| 44 |
$information .= '</p>'; |
| 45 |
$information .= '<table>'; |
| 46 |
|
| 47 |
// Loop through all vulnerabilities for the current plugin and add their details to the table row HTML markup. |
| 48 |
$vulnerabilities = $plugin_vulnerabilities[ $plugin_file ]['vulnerabilities']; |
| 49 |
|
| 50 |
foreach ( $vulnerabilities as $vulnerability ) { |
| 51 |
|
| 52 |
$what = array(); |
| 53 |
if( isset( $vulnerability['impact']['cwe'] ) ) { |
| 54 |
foreach( $vulnerability['impact']['cwe'] as $vulnerability_cwe ) { |
| 55 |
$what[] = '<div><b>' . wp_kses( $vulnerability_cwe['name'], 'strip' ) . '</b></div><div><i>' . wp_kses_post( $vulnerability_cwe['description'] ) . '</i></div>'; |
| 56 |
} |
| 57 |
} |
| 58 |
|
| 59 |
$sources = array(); |
| 60 |
if( isset( $vulnerability['source'] ) ) { |
| 61 |
foreach( $vulnerability['source'] as $vulnerability_source ) { |
| 62 |
$sources[] = '<a href="' . esc_url_raw( $vulnerability_source['link'], 'strip') . '" target="_blank" rel="external nofollow noopener noreferrer">[+]</a> ' . wp_kses( $vulnerability_source['name'], 'strip' ); |
| 63 |
} |
| 64 |
} |
| 65 |
if( count( $sources ) ) { |
| 66 |
$source = '<div style="padding-bottom: 5px;">' . implode( '<br>', $sources ) . '</div>'; |
| 67 |
} |
| 68 |
|
| 69 |
$score = null; |
| 70 |
if( isset( $vulnerability['impact']['cvss']['score'] ) ) { |
| 71 |
$score = number_format( (float) $vulnerability['impact']['cvss']['score'], 1, '.', '' ); |
| 72 |
} |
| 73 |
$severity = null; |
| 74 |
if( isset( $vulnerability['impact']['cvss']['severity'] ) ) { |
| 75 |
$severity = wpvulnerability_severity( $vulnerability['impact']['cvss']['severity'] ); |
| 76 |
} |
| 77 |
$exploitable = null; |
| 78 |
if( isset( $vulnerability['impact']['cvss']['exploitable'] ) ) { |
| 79 |
$exploitable = number_format( (float) $vulnerability['impact']['cvss']['exploitable'], 1, '.', '' ); |
| 80 |
} |
| 81 |
|
| 82 |
$information .= '<tr>'; |
| 83 |
$information .= '<td style="max-width: 256px; min-width: 96px;"><b>' . wp_kses( $vulnerability['versions'], 'strip' ) . '</b></td>'; |
| 84 |
$information .= '<td>'; |
| 85 |
if( (int)$vulnerability['closed'] || (int)$vulnerability['unfixed'] ) { |
| 86 |
$information .= '<div style="padding-bottom: 5px;">'; |
| 87 |
if( (int)$vulnerability['closed'] ) { |
| 88 |
$information .= '<div class="text-red">' . __( 'This plugin is closed. Please replace it with another.', 'wpvulnerability' ) . '</div>'; |
| 89 |
} |
| 90 |
if( (int)$vulnerability['unfixed'] ) { |
| 91 |
$information .= '<div class="text-red">' . __( 'This vulnerability appears to be unpatched. Stay tuned for upcoming plugin updates.', 'wpvulnerability' ) . '</div>'; |
| 92 |
} |
| 93 |
$information .= '</div>'; |
| 94 |
} |
| 95 |
if( count( $what ) ) { |
| 96 |
$information .= '<div style="padding-bottom: 5px;">'; |
| 97 |
foreach( $what as $w ) { |
| 98 |
$information .= $w; |
| 99 |
} |
| 100 |
$information .= '</div>'; |
| 101 |
} |
| 102 |
if( !is_null( $score ) || !is_null( $severity ) || !is_null( $exploitable ) ) { |
| 103 |
$information .= '<div style="padding-bottom: 5px;">'; |
| 104 |
if( !is_null( $score ) ) { |
| 105 |
$information .= '<div>' . __( 'Global score: ', 'wpvulnerability' ) . $score . ' / 10</div>'; |
| 106 |
} |
| 107 |
if( !is_null( $severity ) ) { |
| 108 |
$information .= '<div>' . __( 'Severity: ', 'wpvulnerability' ) . $severity . '</div>'; |
| 109 |
} |
| 110 |
if( !is_null( $exploitable ) ) { |
| 111 |
$information .= '<div>' . __( 'Exploitability: ', 'wpvulnerability' ) . $exploitable . ' / 10</div>'; |
| 112 |
} |
| 113 |
$information .= '</div>'; |
| 114 |
} |
| 115 |
$information .= wp_kses( $source, 'post' ); |
| 116 |
$information .= '</td>'; |
| 117 |
$information .= '</tr>'; |
| 118 |
|
| 119 |
} |
| 120 |
|
| 121 |
$information .= '</table>'; |
| 122 |
$information .= '</td>'; |
| 123 |
$information .= '</tr>'; |
| 124 |
|
| 125 |
echo $information; // phpcs:ignore |
| 126 |
} |
| 127 |
|
| 128 |
/** |
| 129 |
* Retrieves vulnerabilities for a given plugin and updates its data. |
| 130 |
* |
| 131 |
* @since 2.0.0 |
| 132 |
* |
| 133 |
* @param array $plugin_data The plugin data array. |
| 134 |
* @param string $file_path The path to the plugin file. |
| 135 |
* |
| 136 |
* @return array The updated plugin data array. |
| 137 |
* |
| 138 |
*/ |
| 139 |
function get_fresh_plugin_vulnerabilities( $plugin_data, $file_path ) { |
| 140 |
|
| 141 |
// If the TextDomain key is empty, extract it from the file path. |
| 142 |
if( empty( $plugin_data['TextDomain'] ) ) { |
| 143 |
|
| 144 |
$folder_name = explode( '/', $file_path ); |
| 145 |
|
| 146 |
if( isset( $folder_name[0] ) ) { |
| 147 |
$plugin_data['TextDomain'] = wp_kses( $folder_name[0], 'strip' ); |
| 148 |
} |
| 149 |
|
| 150 |
} |
| 151 |
|
| 152 |
// Get the plugin slug and version from the plugin data. |
| 153 |
$plugin_slug = wp_kses( $plugin_data['TextDomain'], 'strip' ); |
| 154 |
$plugin_version = wp_kses( $plugin_data['Version'], 'strip' ); |
| 155 |
|
| 156 |
// Initialize vulnerability related fields. |
| 157 |
$plugin_data['vulnerabilities'] = null; |
| 158 |
$plugin_data['vulnerable'] = 0; |
| 159 |
|
| 160 |
// Retrieve vulnerabilities for the plugin using its slug and version. |
| 161 |
if( $plugin_slug ) { |
| 162 |
|
| 163 |
$plugin_api_response = wpvulnerability_get_plugin( $plugin_slug, $plugin_version ); |
| 164 |
|
| 165 |
// If vulnerabilities are found, update the plugin data accordingly. |
| 166 |
if ( !empty( $plugin_api_response ) ) { |
| 167 |
|
| 168 |
$plugin_data['vulnerabilities'] = $plugin_api_response; |
| 169 |
$plugin_data['vulnerable'] = 1; |
| 170 |
|
| 171 |
} |
| 172 |
|
| 173 |
} |
| 174 |
|
| 175 |
return $plugin_data; |
| 176 |
} |
| 177 |
|
| 178 |
/** |
| 179 |
* Get Installed Plugins |
| 180 |
* Retrieves the list of installed plugins, checks for vulnerabilities in each of them, caches the data, and sends an email notification if vulnerabilities are detected. |
| 181 |
* |
| 182 |
* @since 2.0.0 |
| 183 |
* |
| 184 |
* @return string JSON-encoded array of plugin data with vulnerabilities and vulnerable status |
| 185 |
*/ |
| 186 |
function wpvulnerability_plugin_get_installed() { |
| 187 |
|
| 188 |
if ( ! function_exists( 'get_plugins' ) ) { |
| 189 |
require_once ABSPATH . 'wp-admin/includes/plugin.php'; |
| 190 |
} |
| 191 |
|
| 192 |
$plugins = get_plugins(); |
| 193 |
|
| 194 |
foreach ( $plugins as $file_path => $plugin_data ) { |
| 195 |
|
| 196 |
$plugins[$file_path] = get_fresh_plugin_vulnerabilities( $plugin_data, $file_path ); |
| 197 |
|
| 198 |
} |
| 199 |
|
| 200 |
update_option( 'wpvulnerability-plugins', wp_json_encode( $plugins ) ); |
| 201 |
|
| 202 |
return wp_json_encode( $plugins ); |
| 203 |
} |
| 204 |
|
| 205 |
/** |
| 206 |
* Get the cached plugin vulnerabilities or update the cache if it's stale or missing. |
| 207 |
* |
| 208 |
* @since 2.0.0 |
| 209 |
* |
| 210 |
* @return array Array of installed plugins with their vulnerabilities. |
| 211 |
*/ |
| 212 |
function wpvulnerability_plugin_get_vulnerabilities( ) { |
| 213 |
|
| 214 |
// Get the cached plugin data and decode it. |
| 215 |
$plugin_data_cache = json_decode( get_option( 'wpvulnerability-plugins-cache' ) ); |
| 216 |
|
| 217 |
// Get the installed plugin data and decode it. |
| 218 |
$plugin_data = json_decode( get_option( 'wpvulnerability-plugins' ), true ); |
| 219 |
|
| 220 |
// If the cache is stale or the plugin data is empty, update the cache. |
| 221 |
if( $plugin_data_cache < time() || empty( $plugin_data ) ) { |
| 222 |
|
| 223 |
// Get the installed plugin data and update the cache. |
| 224 |
$plugin_data = json_decode( wpvulnerability_plugin_get_installed( ), true ); |
| 225 |
update_option( 'wpvulnerability-plugins-cache', wp_json_encode( number_format( time() + ( 3600 * WPVULNERABILITY_CACHE_HOURS ), 0, '.', '' ) ) ); |
| 226 |
|
| 227 |
} |
| 228 |
|
| 229 |
return $plugin_data; |
| 230 |
|
| 231 |
} |
| 232 |
|
| 233 |
/** |
| 234 |
* Update the installed plugins cache and remove any old cache data |
| 235 |
* |
| 236 |
* @since 2.0.0 |
| 237 |
* |
| 238 |
* @return void |
| 239 |
*/ |
| 240 |
function wpvulnerability_plugin_get_vulnerabilities_clean( ) { |
| 241 |
|
| 242 |
// Update the installed plugins cache |
| 243 |
wpvulnerability_plugin_get_installed( ); |
| 244 |
|
| 245 |
} |
| 246 |
|
| 247 |
/** |
| 248 |
* Admin Head |
| 249 |
* Adds vulnerability information after the plugin row and notices on the plugin page based on the installed plugins cache |
| 250 |
* |
| 251 |
* @since 2.0.0 |
| 252 |
* |
| 253 |
* @return void |
| 254 |
*/ |
| 255 |
function wpvulnerability_plugin_page() { |
| 256 |
|
| 257 |
// Check if the current page is the plugins page |
| 258 |
global $pagenow; |
| 259 |
if( 'plugins.php' == $pagenow ) { |
| 260 |
|
| 261 |
// Get the vulnerabilities for the installed plugins |
| 262 |
$plugins = wpvulnerability_plugin_get_vulnerabilities(); |
| 263 |
|
| 264 |
// Loop through the plugins and add vulnerability information after the plugin row for vulnerable plugins |
| 265 |
foreach ( $plugins as $file_path => $plugin_data ) { |
| 266 |
|
| 267 |
if ( isset( $plugin_data['vulnerable'] ) && 1 === $plugin_data['vulnerable'] ) { |
| 268 |
|
| 269 |
add_action( 'after_plugin_row_' . $file_path, 'wpvulnerability_plugin_info_after', 10, 3 ); |
| 270 |
|
| 271 |
} |
| 272 |
|
| 273 |
} |
| 274 |
|
| 275 |
} |
| 276 |
} |
| 277 |
// Add notices for vulnerable plugins on the plugin page |
| 278 |
add_action( 'admin_head', 'wpvulnerability_plugin_page' ); |
| 279 |
|
