Dashboard / CVE-2026-34091

CVE-2026-34091

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 71/100
Published: 2026-05-11 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: Low
VI: None
VA: None

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
mediawiki mediawiki < 1.43.7
mediawiki mediawiki 1.44.0 – 1.44.4
mediawiki mediawiki 1.45.0 – 1.45.2

References & Advisories (1)

https://phabricator.wikimedia.org/T411305
Issue Tracking Vendor Advisory

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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:X/AU:X/R:U/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.29%
Raw Score 0.002900
Percentile 21.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00290
2026-10-28
0.00290

Intelligence Sources

nvd ref →

External Links