CVE-2026-1921
The Loco Translate plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.8.2 via the `fsReference` AJAX route. This is due to the `findSourceFile()` method normalizing user-supplied `ref` paths containing `../` directory traversal sequences without validating that the resolved path remains within the intended bundle or content directory. This makes it possible for authenticated attackers, with Translator-level access and above (custom `loco_admin` capability required, granted to the `translator` role and administrators by default), to read arbitrary `.php`, `.js`, `.json`, and `.twig` files from the server filesystem outside the intended translation directory. Files named wp-config.php are excluded.
Schwachstellenklasse
The Loco Translate plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.8.2 via the `fsReference` AJAX route. This is due to the `findSourceFile()` method normalizing user-supplied `ref` paths containing `../` directory traversal sequences without validating that the resolved path remains within the intended bundle or content directory. This makes it possible for authenticated attackers, with Translator-level access and above (custom `loco_admin` capability required, granted to the `translator` role and administrators by default), to read arbitrary `.php`, `.js`, `.json`, and `.twig` files from the server filesystem outside the intended translation directory. Files named wp-config.php are excluded.
Quellen
- https://plugins.trac.wordpress.org/browser/loco-translate/tags/2.8.1/src/ajax/FsReferenceController.php#L12
- https://plugins.trac.wordpress.org/browser/loco-translate/tags/2.8.1/src/ajax/FsReferenceController.php#L92
- https://plugins.trac.wordpress.org/browser/loco-translate/trunk/src/ajax/FsReferenceController.php#L12
- https://plugins.trac.wordpress.org/browser/loco-translate/trunk/src/ajax/FsReferenceController.php#L92
- https://plugins.trac.wordpress.org/changeset/3482475/loco-translate/trunk/tpl/admin/config/version.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Floco-translate/tags/2.8.2&new_path=%2Floco-translate/tags/2.8.3
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