WordPress security changelog
MEDIUM CVE-2025-12359 Deferred

Responsive Lightbox & Gallery: Server-side request forgery

Responsive Lightbox & Gallery is affected by server-side request forgery. Exploitation requires at least author-level access. The vulnerable server can be induced to make attacker-selected network requests.

CVE / CNA score 5.4 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Responsive Lightbox & Gallery
Plugin slug
responsive-lightbox
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Nov 19, 2025
Weakness
CWE-918 — Server-Side Request Forgery (SSRF)

This CVE was published Nov 19, 2025 and is one of 11 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Responsive Lightbox & Gallery to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Primary and upstream sources