Medium severity5.0NVD Advisory· Published Feb 25, 2026· Updated Apr 15, 2026
CVE-2026-2479
CVE-2026-2479
Description
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of strpos() for substring-based hostname validation instead of strict host comparison in the ajax_upload_image() function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
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Affected products
1- Range: <=2.7.1
Patches
Vulnerability mechanics
References
5- plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.7.0/includes/class-remote-library.phpnvd
- plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.7.0/includes/class-remote-library.phpnvd
- plugins.trac.wordpress.org/browser/responsive-lightbox/trunk/includes/class-remote-library.phpnvd
- plugins.trac.wordpress.org/changeset/3464566nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/44276b28-9509-4f59-936c-fff2ae404076nvd
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