#VU47351 Input validation error in MediaWiki - CVE-2020-26121 

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Main Vulnerability Database Vulnerabilities #VU47351

#VU47351 Input validation error in MediaWiki - CVE-2020-26121

Published: September 27, 2020 / Updated: October 6, 2020


Vulnerability identifier: #VU47351
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-26121
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MediaWiki
Software vendor:
MediaWiki.org

Description

The vulnerability allows a remote attacker to compromise the system.

The vulnerability exists due to a mishandled distinction between an upload restriction and a create restriction in the FileImporter extension. A remote attacker can force a wiki to have a page with a disallowed title.


Remediation

Install updates from vendor's website.

External links