Information disclosure in MediaWiki - CVE-2022-39193
Published: January 12, 2023
Vulnerability identifier: #VU71141
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2022-39193
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to output of the supressed information by the application. A remote attacker can gain unauthorized access to sensitive information on the system.
Affected software
MediaWiki
How to mitigate CVE-2022-39193
Install updates from vendor's website.
MediaWiki - addressed in versions 1.35.9, 1.38.5, 1.39.1
External References
- https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/EWRDVJWBOECYCD73PIW52CA76UO62J3M/
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/879167/
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/879166/
- https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/879073/