Detections
Analytics

CVE-2026-103446

high

Description

Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass. This issue affects MediaWiki WikiLambda extension: 1.46.

References

https://phabricator.wikimedia.org/T435086

https://gerrit.wikimedia.org/r/q/If2c05b109672fc65f63372f86c768859dc6639fd

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-90199

Details

Source: Mitre, NVD

Published: 2026-09-30

Updated: 2026-09-30

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

CVSS v4

Base Score: 8.9

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Severity: High

EPSS

EPSS: 0.00413