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CVE-2025-3469: wikimedia foundation mediawiki Cross-site Scripting

CVSS: 0.0v4.0UnknownDeferred
AliasesUBUNTU-CVE-2025-3469DEBIAN-CVE-2025-3469
Published 10-04-2025Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2025-3469 is a Cross-site Scripting vulnerability in wikimedia foundation mediawiki with no CVSS score yet. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 36.6% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
0.0/10
010
Unknown · v4.0 (CVE.org)
EPSS score
0.44%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3
DLA-4249-1DSA-5901-1MGASA-2025-0260

Timeline

  1. 10-04-2025
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLMultiSelectField.Php. This issue affects MediaWiki: before 1.39.12, 1.42.6, 1.43.1.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

+0.01 pp

From 0.43% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.44%

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< 1:1.39.12-1~deb12u1 | < 1:1.43.1+dfsg-1
Ubuntu1 product
  • mediawikiAll versions (No fix recorded)
Wikimedia foundation1 product

3 vendors · 3 products

References

5 links