CVE-2018-19201 Cross-site scripting in n/a

Medium 6.1 Published Updated

Remote attackers can inject JavaScript via the username parameter in the profile editor, potentially leading to session hijacking or malicious actions.

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-2018-19201?

CVE-2018-19201 is a medium-severity cross-site scripting vulnerability in Mybb Mybb, published on 29 Mar 2019. 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

A reflected XSS vulnerability in the ModCP Profile Editor in MyBB before 1.8.20 allows remote attackers to inject JavaScript via the 'username' parameter.

Weakness: CWE-79

Which versions are affected by CVE-2018-19201?

It affects 1 product.

Products include Mybb Mybb.

How do I fix CVE-2018-19201?

No fix has been published for CVE-2018-19201 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-2018-19201 being exploited?

There is no known exploitation of CVE-2018-19201 in the wild and no public exploit code.

All Mybb Mybb vulnerabilities

Sources

Also known as GHSA-fxv8-83r5-h3mq.

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