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No exploitation reportedFix available

CVE-2022-28203

No exploitation reported by the sources we read.

  • Published2022-09-19
  • Fixed in1.37.2 · 1.36.4 · 1.35.6
  • WeaknessCWE-763

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2022-09-1921:15CVE publishedNVD

Versions per branch

NVD · OSV
Mediawiki
BranchAffectedFixed in
1.37≥ 1.37.0, < 1.37.21.37.2
1.36≥ 1.36.0, < 1.36.41.36.4
1.35< 1.35.61.35.6
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • mediawikiUbuntu:Pro:24.04:LTSall versions · no fixed version listed
  • mediawikiUbuntu:Pro:22.04:LTSall versions · no fixed version listed
  • mediawikiUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • mediawikiUbuntu:26.10all versions · no fixed version listed
  • mediawikiUbuntu:26.04:LTSall versions · no fixed version listed
  • mediawikiUbuntu:25.10all versions · no fixed version listed
  • mediawikiUbuntu:18.04:LTSall versions · no fixed version listed
  • mediawikiMageia:8all versions · fixed in 1.35.6-1.mga8

5 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Mediawiki to 1.37.2 · 1.36.4 · 1.35.6

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2022-09-19
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-647g-vgr2-5gqc

Frequently asked questions

What is CVE-2022-28203?

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.

Is CVE-2022-28203 actively exploited?

Active exploitation of CVE-2022-28203 has not been confirmed. Its EPSS score was 1.5% on 2026-11-13, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-28203?

CVE-2022-28203 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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Sources for this record