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.

PUBLISHED Reserved 2025-10-27 | Published 2025-11-19 | Updated 2025-11-19 | Assigner Wordfence

Problem types

CWE-918 Server-Side Request Forgery (SSRF)

Product status

Timeline

Credits

Dmitrii Ignatyev finder

References

www.wordfence.com/...-f289-4a52-ac11-345076c32d84?source=cve

plugins.trac.wordpress.org/....3/includes/class-frontend.php

plugins.trac.wordpress.org/.../includes/class-fast-image.php

plugins.trac.wordpress.org/...s/2.5.3/includes/functions.php

plugins.trac.wordpress.org/...3/includes/class-galleries.php

research.cleantalk.org/cve-2025-12359

plugins.trac.wordpress.org/...%2Ftrunk&sfp_email=&sfph_mail=

cve.org (CVE-2025-12359)

nvd.nist.gov (CVE-2025-12359)

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