CVE-2022-41766

Name: CVE-2022-41766
Creator: NVD / NIST
Published: 2023-05-29T21:15:09.757+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2022-41766 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3. Upon an action=rollback operation, the alreadyrolled message can leak a user name (when the user has been revision deleted/suppressed).. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

An issue was discovered in MediaWiki before 1.35.8, 1.36.x and 1.37.x before 1.37.5, and 1.38.x before 1.38.3. Upon an action=rollback operation, the alreadyrolled message can leak a user name (when the user has been revision deleted/suppressed).

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.57%

42.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.35.8
Mediawiki	Mediawiki	>= 1.36.0, < 1.37.5
Mediawiki	Mediawiki	>= 1.38.0, < 1.38.3

References

https://phabricator.wikimedia.org/T307278Exploit, Issue Tracking, Patch
https://phabricator.wikimedia.org/T307278Exploit, Issue Tracking, Patch

Timeline

Published: May 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-41766?

How severe is CVE-2022-41766?

CVE-2022-41766 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2022-41766?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-41766?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST