CVE-2025-3742 Responsive Lightbox & Gallery < 2.5.1 - Contributor+ Stored XSS

What is CVE-2025-3742?

CVE-2025-3742 is a medium-severity cross-site scripting vulnerability in Unknown Responsive Lightbox & Gallery, published on 15 May 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Responsive Lightbox & Gallery WordPress plugin before 2.5.1 does not validate and escape some of its attributes before outputting them back in a page/post, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Weakness: CWE-79

Which versions are affected by CVE-2025-3742?

It affects 1 product.

Products include Dfactory Responsive Lightbox.

How do I fix CVE-2025-3742?

No fix has been published for CVE-2025-3742 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-3742 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3742 exists.

Other vulnerabilities in Unknown Responsive Lightbox & Gallery

• CVE-2024-6870 Responsive Lightbox & Gallery <= 2.4.7 - Authenticated (Author+) Stored Cross-Site Scripting via File Upload Medium 6.4
• CVE-2017-2243 Cross-site scripting in Responsive Lightbox Medium 6.1
• CVE-2023-49174 WordPress Responsive Lightbox Plugin <= 2.4.5 is vulnerable to Cross Site Scripting (XSS) Medium 5.9
• CVE-2025-5093 Responsive Lightbox & Gallery < 2.5.2 - Contributor+ Stored XSS Medium 5.4
• CVE-2024-43924 WordPress Responsive Lightbox & Gallery plugin <= 2.4.7 - Broken Access Control vulnerability Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m4qv-7jq9-f554.