Information disclosure in MediaWiki - CVE-2021-31545

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU52567

Information disclosure in MediaWiki - CVE-2021-31545

Published: April 26, 2021


Vulnerability identifier: #VU52567
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31545
CWE-ID: CWE-200
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 gain access to potentially sensitive information.

The vulnerability exists in the AbuseFilter extension due to the page_recent_contributors leaked the existence of certain deleted MediaWiki usernames, related to rev_deleted. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Install updates from vendor's website.

External links