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Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… / 3.0.0
Vigilant – 100% Free Security Suite: Firewall, 2FA, Login, Headers, Scanner… v3.0.0
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← All changes | includes/class-login-security.php +199 -56 2.10.53.0.0 View file →
@@ -101,9 +101,9 @@
101 101 // Check lockout before authentication
102 102 add_filter( 'authenticate', array( $this, 'check_lockout' ), 30, 3 );
103 103
104 104 // Track login attempts
105 - add_action( 'wp_login_failed', array( $this, 'handle_failed_login' ) );
105 + add_action( 'wp_login_failed', array( $this, 'handle_failed_login' ), 10, 2 );
106 106 add_action( 'wp_login', array( $this, 'handle_successful_login' ), 10, 2 );
107 107
108 108 // Hide login errors
109 109 if ( ! empty( $this->options['hide_login_errors'] ) ) {
@@ -472,14 +472,49 @@
472 472 if ( defined( 'VIGILANTE_CUSTOM_LOGIN' ) && VIGILANTE_CUSTOM_LOGIN ) {
473 473 return;
474 474 }
475 475
476 - // Allow POST requests (form submissions)
476 + /*
477 + * Everything from here down reaches wp-login.php WITHOUT having gone
478 + * through the secret address, so nothing rendered from here may carry
479 + * it. The filters this class registers rewrite the form action and
480 + * every login link to the slug, and wp-login.php prints them on each
481 + * page it serves, so any request let through below handed the hidden
482 + * address to whoever asked for it.
483 + *
484 + * Measured on 12 sep 2026 with the slug configured: a plain anonymous
485 + * GET of ?action=lostpassword or ?action=retrievepassword returned it
486 + * three times, ?password=changed twice and ?checkemail=confirm once.
487 + * The exemptions those requests use (the allowed actions and the
488 + * informational query strings) have been there since hiding the login
489 + * existed, so the address was never actually hidden from anyone who
490 + * asked for a password reset page.
491 + *
492 + * The first attempt at this fix dropped the filters only for POST, and
493 + * only helped the POST with no action: the cross review of 2.11.10
494 + * found the four GETs and the POST to ?action=lostpassword, which still
495 + * leaked through lostpassword_redirect. The rule is now one rule, not a
496 + * list of shapes: came in by the slug, or the address is not emitted.
497 + *
498 + * A visitor with a session is the single exception, and on purpose:
499 + * they already have access, and logging out has to land on the hidden
500 + * address or core's redirect to ?loggedout=true would 404.
501 + */
502 + if ( ! is_user_logged_in() ) {
503 + $this->stop_emitting_custom_login_url();
504 + }
505 +
506 + /*
507 + * A POST is let through so a remote manager such as MainWP or ManageWP
508 + * can authenticate, which is what this exemption has always existed for.
509 + * Authentication is unaffected by the lines above, because a successful
510 + * login redirects to the destination and never renders this form.
511 + */
477 512 $request_method = isset( $_SERVER['REQUEST_METHOD'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) : '';
478 513 if ( 'POST' === $request_method ) {
479 514 return;
480 515 }
481 -
516 +
482 517 // Allow AJAX requests
483 518 if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
484 519 return;
485 520 }
@@ -501,8 +536,30 @@
501 536 // phpcs:ignore WordPress.Security.NonceVerification.Recommended
502 537 if ( isset( $_GET['checkemail'] ) || isset( $_GET['password'] ) ) {
503 538 return;
504 539 }
540 +
541 + /*
542 + * A visitor in the middle of a second factor verification. Every redirect
543 + * of that flow goes to wp_login_url(), and with the address filters
544 + * dropped that is the plain wp-login.php, so a wrong code, an expired
545 + * nonce or running out of attempts landed on a 404 with no way back: a
546 + * login started by POST straight at wp-login.php could be begun but never
547 + * finished. Found by the third cross review of 2.11.10, which measured
548 + * 2.11.9 returning the visitor to the login form and trunk returning 404.
549 + *
550 + * The proof asked for is the pending session itself, not the cookie:
551 + * a made-up token finds no transient and gets the 404 like anybody else,
552 + * and the real one is only issued after the right password. Same key as
553 + * the trait (trait-two-factor-session.php:91 and :201).
554 + */
555 + if ( isset( $_COOKIE['vigilante_2fa_token'] ) ) {
556 + $pending = get_transient( 'vigilante_2fa_pending_' . sanitize_text_field( wp_unslash( $_COOKIE['vigilante_2fa_token'] ) ) );
557 +
558 + if ( is_array( $pending ) && ! empty( $pending['user_id'] ) ) {
559 + return;
560 + }
561 + }
505 562
506 563 // Check if user already logged in - redirect to admin
507 564 if ( is_user_logged_in() ) {
508 565 wp_safe_redirect( admin_url() );
@@ -664,12 +721,53 @@
664 721 * @param string $register_url The register URL.
665 722 * @return string
666 723 */
667 724 public function filter_register_url( $register_url ) {
725 + /*
726 + * Not from wp-signup.php. On a single site the core answers that file
727 + * with wp_redirect( wp_registration_url() ) and dies (wp-signup.php:39-41),
728 + * so this filter put the secret address in the Location header of a plain
729 + * anonymous request, outside wp-login.php and therefore out of reach of
730 + * block_wp_login_access(), which only runs on login_init. Measured by the
731 + * third cross review of 2.11.10; present since hiding the login existed.
732 + *
733 + * Left unfiltered, that redirect lands on wp-login.php?action=register,
734 + * which the blocker answers with the same 404 as any other direct visit,
735 + * which is what hiding the login is for. The registration link served on
736 + * the login page itself is rendered under the slug, where this filter goes
737 + * on doing its job.
738 + */
739 + if ( $this->request_is_signup() ) {
740 + return $register_url;
741 + }
742 +
668 743 return add_query_arg( 'action', 'register', home_url( $this->custom_login_slug . '/' ) );
669 744 }
670 745
671 746 /**
747 + * Whether this request is being served by wp-signup.php or wp-activate.php
748 + *
749 + * @since 2.11.10
750 + *
751 + * @return bool
752 + */
753 + private function request_is_signup() {
754 + foreach ( array( 'SCRIPT_NAME', 'PHP_SELF', 'SCRIPT_FILENAME' ) as $key ) {
755 + if ( empty( $_SERVER[ $key ] ) ) {
756 + continue;
757 + }
758 +
759 + $file = basename( sanitize_text_field( wp_unslash( $_SERVER[ $key ] ) ) );
760 +
761 + if ( 'wp-signup.php' === $file || 'wp-activate.php' === $file ) {
762 + return true;
763 + }
764 + }
765 +
766 + return false;
767 + }
768 +
769 + /**
672 770 * Redirect after a successful lost-password request to the custom login URL
673 771 *
674 772 * Without this filter, core sends the user to wp-login.php?checkemail=confirm,
675 773 * which 404s when the custom login URL is enabled (block_wp_login_access only
@@ -862,8 +960,14 @@
862 960 'warning'
863 961 );
864 962 }
865 963
964 + // This rejection is ours, not a wrong password. wp_authenticate()
965 + // still fires wp_login_failed for it, and until 2.11.0 that counted
966 + // the blocked attempt as one more failure, which rewrote the row's
967 + // status and produced a fresh lockout, with its critical entry and
968 + // its email, on every POST made during the lockout (S8). The error
969 + // code below is what handle_failed_login() reads to leave it alone.
866 970 return new WP_Error(
867 971 'vigilante_lockout',
868 972 sprintf(
869 973 /* translators: %d: Minutes remaining */
@@ -876,15 +980,56 @@
876 980 return $user;
877 981 }
878 982
879 983 /**
984 + * Error codes of the refusals Vigilant issues itself
985 + *
986 + * WordPress treats every WP_Error out of the authenticate chain as a failed
987 + * login and fires wp_login_failed for it (wp-includes/pluggable.php,
988 + * wp_authenticate()). These seven are not wrong passwords: the credentials
989 + * were right and Vigilant stopped the login for a reason of its own, so none
990 + * of them counts towards the brute force lockout.
991 + *
992 + * The rejection identifies itself by the error code it carries. Until
993 + * 2.11.12 each one instead added a filter that stayed registered for the
994 + * rest of the request, which meant that one controlled rejection stopped
995 + * every later failed login of the same request from being counted: measured
996 + * on 17 Sep 2026, three wrong passwords for a different account, sent in the
997 + * same request, none of them recorded. A single XML-RPC system.multicall is
998 + * enough to make that one request.
999 + *
1000 + * @since 2.11.12
1001 + *
1002 + * @var string[]
1003 + */
1004 + const CONTROLLED_REJECTIONS = array(
1005 + 'vigilante_2fa_required', // Two factor asked for, by app or by email.
1006 + 'vigilante_lockout', // This address is already locked out.
1007 + 'vigilante_force_reset', // An administrator forced a password reset.
1008 + 'vigilante_password_expired', // Password expiry policy, over XML-RPC.
1009 + 'pending_approval', // Registration awaiting approval.
1010 + 'session_limit_exceeded', // Too many sessions already open.
1011 + 'email_not_verified', // Email address not verified yet.
1012 + );
1013 +
1014 + /**
880 1015 * Handle failed login attempt
881 1016 *
882 - * @param string $username Username that failed.
1017 + * @since 2.11.12 Receives the WP_Error, so a refusal of Vigilant's own is told
1018 + * apart from a wrong password by what it is and not by a flag
1019 + * left behind for the rest of the request.
1020 + *
1021 + * @param string $username Username that failed.
1022 + * @param WP_Error|null $error The error WordPress is reporting, if any.
883 1023 */
884 - public function handle_failed_login( $username ) {
885 - // Skip counting if this is a Vigilante-controlled rejection
886 - // (pending approval, session limit, email verification, etc.)
1024 + public function handle_failed_login( $username, $error = null ) {
1025 + // A refusal of ours, not a wrong password.
1026 + if ( $error instanceof WP_Error && array_intersect( $error->get_error_codes(), self::CONTROLLED_REJECTIONS ) ) {
1027 + return;
1028 + }
1029 +
1030 + // Kept for anything outside the plugin that marks its own controlled
1031 + // rejection. Nothing inside Vigilant sets it any more.
887 1032 if ( apply_filters( 'vigilante_skip_failed_login_count', false ) ) {
888 1033 return;
889 1034 }
890 1035
@@ -933,8 +1078,15 @@
933 1078 // Get failed attempts in the last hour
934 1079 $failed_count = $this->database->get_failed_attempt_count( $ip, 60 );
935 1080
936 1081 if ( $failed_count >= $max_attempts ) {
1082 + // Already locked out: every further POST during the lockout used to
1083 + // write another critical entry and send another email (S8). The
1084 + // lockout itself is what check_lockout() enforces; nothing to add.
1085 + if ( $this->database->is_locked_out( $ip ) ) {
1086 + return;
1087 + }
1088 +
937 1089 // Calculate lockout duration with increment
938 1090 if ( ! empty( $this->options['lockout_increment'] ) ) {
939 1091 $previous_lockouts = $this->get_previous_lockout_count( $ip );
940 1092 $lockout_duration = min(
@@ -1116,11 +1268,13 @@
1116 1268 // Login Security
1117 1269 'vigilante_lockout',
1118 1270 // User Security
1119 1271 'vigilante_force_reset',
1120 - 'pending_approval',
1121 - 'email_not_verified',
1122 - 'session_limit_exceeded',
1272 + // pending_approval, email_not_verified and session_limit_exceeded
1273 + // are deliberately NOT here since 2.11.0: they are only raised once
1274 + // the password is correct, so letting them through told an
1275 + // unauthenticated visitor which accounts exist (S10). Those users
1276 + // learn their status from the registration and verification emails.
1123 1277 // Two-Factor Email
1124 1278 'no_code',
1125 1279 'code_expired',
1126 1280 'code_used',
@@ -1178,14 +1332,10 @@
1178 1332 // Note: this fallback won't match on translated sites — the
1179 1333 // code-based check above is the locale-safe path.
1180 1334 $allowed_patterns = array(
1181 1335 'vigilante_lockout',
1182 - 'Account pending',
1183 - 'pending_approval',
1184 - 'email_not_verified',
1185 - 'verify your email',
1186 - 'session_limit',
1187 - 'too many active',
1336 + // The pending-approval, unverified-email and session-limit strings
1337 + // were removed in 2.11.0 for the same reason as their codes above (S10).
1188 1338 'verification code',
1189 1339 'authenticator app',
1190 1340 'two-factor',
1191 1341 'grace period',
@@ -1210,15 +1360,15 @@
1210 1360 * @return array
1211 1361 */
1212 1362 public function remove_shake_errors( $codes ) {
1213 1363 // Keep shake for Vigilante-specific errors that indicate real problems
1214 - // Do NOT include 2FA codes - the form transition should be smooth
1364 + // Do NOT include 2FA codes - the form transition should be smooth.
1365 + // The three account-status codes are not here either since 2.11.0: a
1366 + // shake that only plays for existing accounts is the same tell as the
1367 + // message it replaced (S10).
1215 1368 return array(
1216 1369 'vigilante_lockout',
1217 1370 'vigilante_force_reset',
1218 - 'pending_approval',
1219 - 'email_not_verified',
1220 - 'session_limit_exceeded',
1221 1371 );
1222 1372 }
1223 1373
1224 1374
@@ -1287,9 +1437,9 @@
1287 1437 __( 'Failed attempts', 'vigilante' ) => (string) $attempts,
1288 1438 __( 'Lockout duration', 'vigilante' ) => ceil( $duration / 60 ) . ' ' . __( 'minutes', 'vigilante' ),
1289 1439 __( 'Date/Time', 'vigilante' ) => wp_date( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ) ),
1290 1440 ) );
1291 - $body .= Vigilante_Email_Template::button( admin_url( 'admin.php?page=vigilante&tab=login' ), __( 'View lockouts', 'vigilante' ) );
1441 + $body .= Vigilante_Email_Template::button( admin_url( 'admin.php?page=vigilante&tab=login#vigilante-section-login-status' ), __( 'View lockouts', 'vigilante' ) );
1292 1442
1293 1443 Vigilante_Email_Template::send( $to, $subject, __( 'Login lockout triggered', 'vigilante' ), $body, true );
1294 1444 }
1295 1445
@@ -1494,8 +1644,36 @@
1494 1644 * blockers already let every POST through, which is how they authenticate.
1495 1645 *
1496 1646 * @return bool
1497 1647 */
1648 + /**
1649 + * Stop this request from putting the secret login address in any URL
1650 + *
1651 + * The filters that rewrite a WordPress login URL into the custom slug are
1652 + * what makes the feature work, and also what leaks it the moment a page is
1653 + * rendered on a path the visitor was not supposed to reach. Dropping them
1654 + * for the rest of the request keeps whatever renders afterwards free of the
1655 + * slug, while everything else about the request goes on as before.
1656 + *
1657 + * The two redirect filters are here because the first version of this list
1658 + * had only the five URL ones, and a POST to ?action=lostpassword still
1659 + * handed the address over in the hidden redirect_to field that
1660 + * lostpassword_redirect fills. Found by the cross review of 2.11.10. Any
1661 + * filter of this class that can put the slug in front of a visitor belongs
1662 + * in this list; if a new one is added, add it here too.
1663 + *
1664 + * @since 2.11.10
1665 + */
1666 + private function stop_emitting_custom_login_url() {
1667 + remove_filter( 'site_url', array( $this, 'filter_site_url' ), 10 );
1668 + remove_filter( 'login_url', array( $this, 'filter_login_url' ), 10 );
1669 + remove_filter( 'logout_url', array( $this, 'filter_logout_url' ), 10 );
1670 + remove_filter( 'lostpassword_url', array( $this, 'filter_lostpassword_url' ), 10 );
1671 + remove_filter( 'register_url', array( $this, 'filter_register_url' ), 10 );
1672 + remove_filter( 'lostpassword_redirect', array( $this, 'filter_lostpassword_redirect' ), 10 );
1673 + remove_filter( 'logout_redirect', array( $this, 'filter_logout_redirect' ), 10 );
1674 + }
1675 +
1498 1676 private function is_ip_exempt_from_hiding() {
1499 1677 $whitelist = $this->settings->get_option( 'firewall', 'ip_whitelist', array() );
1500 1678
1501 1679 if ( empty( $whitelist ) ) {
@@ -1537,43 +1715,8 @@
1537 1715 public function get_locked_out_ips() {
1538 1716 return $this->database->get_locked_out_ips();
1539 1717 }
1540 1718
1541 - /**
1542 - * Get login statistics
1543 - *
1544 - * @param int $days Days to look back.
1545 - * @return array
1546 - */
1547 - public function get_statistics( $days = 7 ) {
1548 - global $wpdb;
1549 -
1550 - $table = esc_sql( $this->database->get_login_attempts_table() );
1551 - $since = gmdate( 'Y-m-d H:i:s', strtotime( "-{$days} days" ) );
1552 -
1553 - // phpcs:disable WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
1554 - $stats = $wpdb->get_row(
1555 - $wpdb->prepare(
1556 - "SELECT
1557 - COUNT(CASE WHEN status = 'failed' THEN 1 END) as failed_attempts,
1558 - COUNT(CASE WHEN status = 'lockout' THEN 1 END) as lockouts,
1559 - COUNT(DISTINCT ip_address) as unique_ips,
1560 - COUNT(DISTINCT username) as unique_usernames
1561 - FROM `{$table}`
1562 - WHERE last_attempt >= %s",
1563 - $since
1564 - ),
1565 - ARRAY_A
1566 - );
1567 - // phpcs:enable
1568 -
1569 - return $stats ? $stats : array(
1570 - 'failed_attempts' => 0,
1571 - 'lockouts' => 0,
1572 - 'unique_ips' => 0,
1573 - 'unique_usernames' => 0,
1574 - );
1575 - }
1576 1719 }
1577 1720
1578 1721 /**
1579 1722 * Disabled XML-RPC Server class