CVE-2022-28203

Name: CVE-2022-28203
Creator: NVD / NIST
Published: 2022-09-19T21:15:09.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2022-28203 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A denial-of-service issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. When many files exist, requesting Special:NewFiles with actor as a condition can result in a very long running query.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

A denial-of-service issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. When many files exist, requesting Special:NewFiles with actor as a condition can result in a very long running query.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.12%

62.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-763

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.35.6
Mediawiki	Mediawiki	>= 1.36.0, < 1.36.4
Mediawiki	Mediawiki	>= 1.37.0, < 1.37.2
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://lists.debian.org/debian-lts-announce/2022/09/msg00027.htmlMailing List, Third Party Advisory
https://phabricator.wikimedia.org/T297731Exploit, Issue Tracking, Patch, Vendor Advisory
https://www.debian.org/security/2022/dsa-5246Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00027.htmlMailing List, Third Party Advisory
https://phabricator.wikimedia.org/T297731Exploit, Issue Tracking, Patch, Vendor Advisory
https://www.debian.org/security/2022/dsa-5246Third Party Advisory

Timeline

Published: Sep 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-28203?

How severe is CVE-2022-28203?

CVE-2022-28203 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2022-28203?

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-2022-28203?

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

Scan your code now

Source: NVD / NIST