CVE-2021-41261 Stored Cross-site Scripting in Galette

High 8.1 Published Updated

Stored XSS in Galette allows attackers to inject scripts via admin-modified preferences, potentially leading to session hijacking or code execution.

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

What is CVE-2021-41261?

CVE-2021-41261 is a high-severity cross-site scripting vulnerability in galette, published on 16 Dec 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Galette is a membership management web application built for non profit organizations and released under GPLv3. Versions prior to 0.9.6 are subject to stored cross site scripting attacks via the preferences footer. The preference footer can only be altered by a site admin. This issue has been resolved in the 0.9.6 release and all users are advised to upgrade. There are no known workarounds.

Weakness: CWE-79

Which versions are affected by CVE-2021-41261?

It affects 1 product.

Products include Galette Galette.

How do I fix CVE-2021-41261?

No fix has been published for CVE-2021-41261 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-2021-41261 being exploited?

There is no known exploitation of CVE-2021-41261 in the wild and no public exploit code.

Sources

Also known as GHSA-28fg-cp22-6c33, UBUNTU-CVE-2021-41261.

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