CVE-2026-103442

HIGH 1 PoC
MEDIUM Priority: 0.02 BB Relevance: 49/100
Published: 2026-09-30 Modified: 2026-11-09 First seen: 2026-11-09 Status: active

Attack Surface

Network Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: Passive
S: N
AT: Present
VC: High
VI: High
VA: Low

Description

External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection. This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.

Proof of Concept (1)

Bug Bounty Relevance

49 / 100
✓ Network accessible
✓ PoC available (1)

CVSS Score

7.2 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/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:N/AU:Y/R:U/V:D/RE:M/U:Amber

EPSS — Exploitation Probability

0.28%
Raw Score 0.002800
Percentile 20.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00280
2026-11-12
0.00280
2026-11-10
0.00280
2026-11-09
0.00280

Intelligence Sources

mitre ref →
nvd ref →