CVE-2025-31453 WordPress YouTube SimpleGallery plugin <= 2.0.6 - Cross Site Scripting (XSS) Vulnerability

Medium 6.5 Published Updated

Stored XSS in YouTube SimpleGallery allows attackers to inject malicious scripts, potentially leading to session hijacking or site defacement.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-31453?

CVE-2025-31453 is a medium-severity cross-site scripting vulnerability in Stian Andreassen YouTube SimpleGallery, published on 28 Mar 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Stian Andreassen YouTube SimpleGallery youtube-simplegallery allows Stored XSS.This issue affects YouTube SimpleGallery: from n/a through <= 2.0.6.

Weakness: CWE-79

Which versions are affected by CVE-2025-31453?

How do I fix CVE-2025-31453?

No fix has been published for CVE-2025-31453 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-2025-31453 being exploited?

There is no known exploitation of CVE-2025-31453 in the wild and no public exploit code.

Sources

Also known as GHSA-8vgx-hg29-89rj.

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