Use of insufficiently random values in Joomla! - CVE-2021-23128
Published: March 2, 2021
Vulnerability identifier: #VU51112
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-23128
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to Joomla! core contains randval implementation within FOF (FOFEncryptRandval), used an potential insecure implemetation. A remote attacker can bypass certain security restrictions, that rely on randomization.
Affected software
Joomla!
How to mitigate CVE-2021-23128
Install updates from vendor's website.
Joomla! - update to 3.9.25