CVE-2026-2479 Server-side request forgery in Responsive Lightbox & Gallery
Authenticated attackers can exploit SSRF in Responsive Lightbox & Gallery to query and modify internal services via remote image uploads.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2479?
CVE-2026-2479 is a medium-severity server-side request forgery vulnerability in dfactory Responsive Lightbox & Gallery, published on 25 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-2479?
How do I fix CVE-2026-2479?
No fix has been published for CVE-2026-2479 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-2479 being exploited?
There is no known exploitation of CVE-2026-2479 in the wild and no public exploit code.
Sources
Also known as GHSA-p7fh-wf7x-3xhv.