CVE-2025-67291 Piranha has stored cross-site scripting (XSS) vulnerability

Medium 6.1 Published Updated

Attackers can execute arbitrary scripts via stored XSS in the Media module Name field, requiring an upgrade to mitigate.

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

What is CVE-2025-67291?

CVE-2025-67291 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A stored cross-site scripting (XSS) vulnerability in the Media module of Piranha CMS v12.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Name field.

Weakness: CWE-79

Which versions are affected by CVE-2025-67291?

2 open source packages ship an affected version, including Piranha. It affects 1 product.

PackageAffectedFixed in
Piranha NuGetAll versions to 12.0.0None
Piranha NuGetAll versions to 12.0.0None

Products include Dotnetfoundation Piranha Cms.

How do I fix CVE-2025-67291?

No fix has been published for CVE-2025-67291 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-2025-67291 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-67291 exists.

Sources

Also known as GHSA-83fp-hh9m-c2jq.

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