Vulnerability · Published Nov 19, 2025 · Assigned by Wordfence
CVE-2025-12359Responsive Lightbox & Gallery <= 2.5.3 - Authenticated (Author+) Server-Side Request Forgery
Medium 5.4
In plain English
A medium-severity server-side request forgery in Responsive Lightbox & Gallery from dfactory. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official description
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.5.3 via the 'get_image_size_by_url' function. This is due to insufficient validation of user-supplied URLs when determining image dimensions for gallery items. 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dfactory | Responsive Lightbox & Gallery | 0 – through 2.5.3 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7f4c0bd6-f289-4a52-ac11-345076c32d84?source=cve
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/class-frontend.php#L1531
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/class-fast-image.php#L25
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/functions.php#L108
- https://plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/class-galleries.php#L3648
- https://research.cleantalk.org/cve-2025-12359
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3397940%40responsive-lightbox%2Ftrunk&old=3358021%40responsive-lightbox%2Ftrunk&sfp_email=&sfph_mail=