What is CVE-2026-2479?

CVE-2026-2479 is a medium-severity vulnerability in Dfactory Responsive Lightbox & Gallery, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-02-25.

How severe is CVE-2026-2479?

Medium severity. CVSS v3 base score is 5.0 out of 10.

SSRF in Dfactory Responsive Lightbox & Gallery

CVE-2026-2479

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.002 (14.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

Affected products

Dfactory Responsive Lightbox & Gallery — versions 0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

Frequently asked questions

What is CVE-2026-2479?: CVE-2026-2479 is a medium-severity vulnerability in Dfactory Responsive Lightbox & Gallery, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-02-25.
How severe is CVE-2026-2479?: Medium severity. CVSS v3 base score is 5.0 out of 10.