CVE-2022-39193

Name: CVE-2022-39193
Creator: NVD / NIST
Published: 2023-01-20T19:15:15.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2022-39193 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered in the CheckUser extension for MediaWiki through 1.39.x. Various components of this extension can expose information on the performer of edits and logged actions. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.x. Various components of this extension can expose information on the performer of edits and logged actions. This information should not allow public viewing: it is supposed to be viewable only by users with suppression rights.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.60%

44.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	1.39.0
Mediawiki	Mediawiki	1.39.1

References

https://phabricator.wikimedia.org/T311337Exploit, Issue Tracking, Patch, Third Party Advisory
https://phabricator.wikimedia.org/T311337Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jan 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39193?

How severe is CVE-2022-39193?

CVE-2022-39193 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39193?

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-2022-39193?

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

Scan your code now

Source: NVD / NIST