CVE-2025-62668

Insufficient permission checks in action=growthsetmentor

6.9 Medium

Incorrect Default Permissions vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Resource Leak Exposure.This issue affects Mediawiki - GrowthExperiments Extension: from master before 1.39.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.42%Up 0.4 points since Oct 18, 2025

What each source reports

CVE List Score used 6.9

Insufficient permission checks in action=growthsetmentor

Record: CVE-2025-62668
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
Weakness: CWE-276
Updated: 2026-11-02

EUVDEUVD-2025-34956 6.9

Record: EUVD-2025-34956
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-v6f7-mh9q-h69v 6.9

Incorrect Default Permissions vulnerability in The Wikimedia Foundation Mediawiki -...

Record: GHSA-v6f7-mh9q-h69v
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-276
Updated: 2026-11-02

NVD 6.9

Record: CVE-2025-62668
CVSS 4.0: 6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-276
Updated: 2026-11-02

Affected products

the wikimedia foundation mediawiki - growthexperiments extension

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-62668 is a medium vulnerability (CVSS 6.9) in The Wikimedia Foundation Mediawiki - Growthexperiments Extension, published October 18, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. No source names a fixed version.