CVE-2020-8825 Cross-site scripting in n/a

Medium 5.4 Published 10 Feb 2020 Updated 4 Aug 2024

Stored XSS in Vanilla forum branding settings allows attackers to execute arbitrary scripts in victim browsers.

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-2020-8825?

CVE-2020-8825 is a medium-severity cross-site scripting vulnerability in n/a, published on 10 Feb 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

index.php?p=/dashboard/settings/branding in Vanilla 2.6.3 allows stored XSS.

Weakness: CWE-79

Which versions are affected by CVE-2020-8825?

It affects 1 product.

Products include Vanillaforums Vanilla.

How do I fix CVE-2020-8825?

No fix has been published for CVE-2020-8825 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-2020-8825 being exploited?

There is no known exploitation of CVE-2020-8825 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-cr69-8239-cwfv.