6.9

CVE-2025-62667: the wikimedia foundation mediawiki - growthexperiments extension Cross-site Scripting

CVSS: 6.9v4.0MediumDeferred
Published 18-10-2025Last modified 20-10-2025
Open JSON

Vulnerability summary

CVE-2025-62667 is a medium (CVSS 6.9) Cross-site Scripting vulnerability in the wikimedia foundation mediawiki - growthexperiments extension. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.9% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-10-2025
    PublishedVulnerability first disclosed.
  2. 20-10-2025
    Last modifiedVulnerability information updated.

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Stored XSS.This issue affects Mediawiki - GrowthExperiments Extension: from master before 1.39.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.45% on 21-09-2026

21-09-202621-10-2026
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

The wikimedia foundation1 product

1 vendor · 1 product

References

2 links