CVE-2026-2479
Responsive Lightbox & Gallery <= 2.7.1 - Authenticated (Author+) Server-Side Request Forgery via Remote Library Image Upload
- State
- Published
- Severity
- 5.0 Medium
- Published
- Feb 25, 2026
- Updated
- Apr 8, 2026
- Reserved
- Feb 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.0 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N | Wordfence |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
Responsive Lightbox & Gallerydfactory |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/44276b28-9509-4f59-936c-fff2ae404076?source=cve
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.7.0/includes/class-remote-library.php#L329
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/trunk/includes/class-remote-library.php#L329
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.7.0/includes/class-remote-library.php#L344
- https://plugins.trac.wordpress.org/changeset/3464566?contextall=1
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