CVE-2020-22841 Cross-site scripting in n/a

Medium 4.8 Published Updated

Stored XSS in b2evolution CMS allows attackers to execute malicious JavaScript via the plugin name field.

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-2020-22841?

CVE-2020-22841 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Feb 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Stored XSS in b2evolution CMS version 6.11.6 and prior allows an attacker to perform malicious JavaScript code execution via the plugin name input field in the plugin module.

Weakness: CWE-79

Which versions are affected by CVE-2020-22841?

It affects 1 product.

Products include B2evolution B2evolution.

How do I fix CVE-2020-22841?

No fix has been published for CVE-2020-22841 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-2020-22841 being exploited?

There is no known exploitation of CVE-2020-22841 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-wfwh-pmv6-rmqq.

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