CVE-2011-5133 Cross-site scripting in n/a
An unspecified vulnerability in MyBB allows attackers to inject malicious scripts via unparsed user avatars in the buddy list, potentially compromising user sessions.
- 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-2011-5133?
CVE-2011-5133 is a critical cross-site scripting vulnerability in Mybb Mybb, published on 30 Aug 2012. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Unspecified vulnerability in MyBB before 1.6.5 has unknown impact and attack vectors, related to an "unparsed user avatar in the buddy list."
Which versions are affected by CVE-2011-5133?
It affects 1 product.
Products include Mybb Mybb.
How do I fix CVE-2011-5133?
No fix has been published for CVE-2011-5133 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-2011-5133 being exploited?
There is no known exploitation of CVE-2011-5133 in the wild and no public exploit code.
Other vulnerabilities in Mybb Mybb
Sources
Also known as GHSA-xxrm-wh3c-cfmr.