CVE-2006-6421 Cross-site scripting in n/a
Authenticated users can inject scripts via private messages to non-existent users, potentially leading to session hijacking or code execution.
- 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-2006-6421?
CVE-2006-6421 is a medium-severity cross-site scripting vulnerability in Phpbb Group Phpbb, published on 10 Dec 2006. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross-site scripting (XSS) vulnerability in the private message box implementation (privmsg.php) in phpBB 2.0.x allows remote authenticated users to inject arbitrary web script or HTML via the "Message body" field in a message to a non-existent user.
Which versions are affected by CVE-2006-6421?
It affects 1 product.
Products include Phpbb Group Phpbb.
How do I fix CVE-2006-6421?
No fix has been published for CVE-2006-6421 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-2006-6421 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-6421 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Phpbb Group Phpbb
Sources
Also known as GHSA-72m2-fw2r-7r4h.