CVE-2021-25982 FactorJS - Reflected Cross-Site Scripting (XSS) in Search Functionality

Medium 6.1 Published Updated

An unauthenticated attacker can execute malicious JavaScript via the search parameter to steal session cookies in the FactorJS forum plugin.

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-2021-25982?

CVE-2021-25982 is a medium-severity cross-site scripting vulnerability in FactorJS Factor, published on 16 Nov 2021. 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

In Factor (App Framework & Headless CMS) forum plugin, versions 1.3.5 to 1.8.30, are vulnerable to reflected Cross-Site Scripting (XSS) at the “search” parameter in the URL. An unauthenticated attacker can execute malicious JavaScript code and steal the session cookies.

Weakness: CWE-79

Which versions are affected by CVE-2021-25982?

It affects 1 product.

Products include Darwin Factor.

How do I fix CVE-2021-25982?

No fix has been published for CVE-2021-25982 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-2021-25982 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25982 exists.

Sources

Also known as GHSA-fxff-28gh-86mj.

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