Medium severity5.4NVD Advisory· Published Nov 19, 2025· Updated Apr 15, 2026
CVE-2025-12359
CVE-2025-12359
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=2.5.3+ 1 more
- (no CPE)range: <=2.5.3
- (no CPE)range: <=2.5.3
Patches
Vulnerability mechanics
References
7- plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/class-fast-image.phpnvd
- plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/class-frontend.phpnvd
- plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/class-galleries.phpnvd
- plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.5.3/includes/functions.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- research.cleantalk.org/cve-2025-12359nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/7f4c0bd6-f289-4a52-ac11-345076c32d84nvd
News mentions
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