9.8

CVE-2025-67484: mediawiki Improper Input Validation

CVSS: 9.8v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2025-67484DEBIAN-CVE-2025-67484
Published 03-02-2026Last modified 03-03-2026
Open JSON

Vulnerability summary

CVE-2025-67484 is a critical (CVSS 9.8) Improper Input Validation vulnerability in mediawiki. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.45%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DLA-4428-1DSA-6085-1

Timeline

  1. 03-02-2026
    PublishedVulnerability first disclosed.
  2. 03-03-2026
    Last modifiedVulnerability information updated.

Description

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiFormatXml.Php. This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

+0.04 pp

From 0.41% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • mediawiki< 1:1.39.17-1~deb12u1 | < 1:1.43.6+dfsg-1~deb13u1 | < 1:1.43.6+dfsg-1
Mediawiki1 product
  • mediawiki≥ 1.39.0, < 1.39.16 | ≥ 1.43.0, < 1.43.6 | ≥ 1.44.0, < 1.44.3 | 1.45.0
Ubuntu1 product
  • mediawikiAll versions (No fix recorded)
Wikimedia foundation1 product

4 vendors · 4 products

References

5 links