CVE-2018-6844 Cross-site scripting in n/a

Medium 5.4 Published Updated

Attackers can inject malicious scripts via forum title or description fields, potentially stealing user sessions or executing code.

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-2018-6844?

CVE-2018-6844 is a medium-severity cross-site scripting vulnerability in Mybb Mybb, published on 8 Feb 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

MyBB 1.8.14 has XSS via the Title or Description field on the Edit Forum screen.

Weakness: CWE-79

Which versions are affected by CVE-2018-6844?

It affects 1 product.

Products include Mybb Mybb.

How do I fix CVE-2018-6844?

No fix has been published for CVE-2018-6844 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-2018-6844 being exploited?

There is no known exploitation of CVE-2018-6844 in the wild and no public exploit code.

All Mybb Mybb vulnerabilities

Sources

Also known as GHSA-x5h7-fgx9-cqjj.

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