CVE-2011-4321 Weak cryptography in n/a
Weak random number generation in Joomla password reset allows remote attackers to take over arbitrary user accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-4321?
CVE-2011-4321 is a medium-severity vulnerability in Joomla Joomla\!, published on 23 Nov 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The password reset functionality in Joomla! 1.5.x through 1.5.24 uses weak random numbers, which makes it easier for remote attackers to change the passwords of arbitrary users via unspecified vectors.
Weakness: CWE-310
Which versions are affected by CVE-2011-4321?
It affects 1 product.
Products include Joomla Joomla\!.
How do I fix CVE-2011-4321?
No fix has been published for CVE-2011-4321 yet. Limit exposure of the affected software until one is available.
Is CVE-2011-4321 being exploited?
There is no known exploitation of CVE-2011-4321 in the wild and no public exploit code.
Other vulnerabilities in Joomla Joomla\!
- CVE-2016-10033 PHPMailer Command Injection
- CVE-2023-23752 Joomla! Improper Access Control
- CVE-2026-48902 Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
- CVE-2025-25226 [20250401] - Joomla Framework - SQL injection vulnerability in quoteNameStr method of Database package
- CVE-2022-23795 [20220303] - Core - User row are not bound to a authentication mechanism
Sources
Also known as GHSA-f5jw-2gp7-cm88.