CVE-2026-3907
No known patch is available for this vulnerability.
The affected plugin has not been updated on WordPress.org since before this CVE was disclosed; the latest installable version is still vulnerable. If you have the affected software installed, you should uninstall or replace it rather than wait for an update.
Description
The Hostel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wphostel-book' shortcode in all versions up to and including 1.1.7. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the second shortcode attribute (used as button text) is passed to the $text variable without sanitization at line 79 and then output directly into an HTML value attribute at line 91 without esc_attr() or any other escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
1Patches
Vulnerability mechanics
References
8- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/controllers/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/controllers/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/models/hostel.phpnvd
- plugins.trac.wordpress.org/browser/hostel/trunk/controllers/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/hostel/trunk/controllers/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/hostel/trunk/models/hostel.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/30339c0d-6632-4073-b4d5-3bb4a5b8a58dnvd
News mentions
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