CVEvulnerability

CVE-2026-34090

4.8 MEDIUM Published 2026-05-11 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-11
Last modified
2026-10-26
Assigner
c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
CVSS 4.0 (c4f26cc8-17ff-4c99-b5e2-38fc1793eacc)
4.8 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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:U/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation CheckUser. This issue affects CheckUser: from 1.45.0 before 1.45.2.

Affected configurations

• mediawiki checkuser (>= 1.45.0 < 1.45.2)

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References