Path traversal in Joomla! - CVE-2021-26028
Published: March 2, 2021
Vulnerability identifier: #VU51118
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-26028
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Joomla!
Affected software:
Joomla!
Joomla!
Detailed vulnerability description
The vulnerability allows a remote user to overwrite files on the system
The vulnerability exists due to input validation error when processing directory traversal sequences within zip archives. A remote user can pass specially crafted .zip file to the application and write files outside of the intended path.
How to mitigate CVE-2021-26028
Install update from vendor's website.