Vulnerability Report

CVE-2026-22710

Title: XSS in Mediawiki - Wikibase Extension

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-22710.

CWE Category CWE-79

Published Date Jan 09, 2026

Modified Date Feb 12, 2026

Exploit Status Not Found

Score 2.3 CVSS v4.0

Exploit Probability (EPSS)

0.01%

Vulnerability Summary

CVE-2026-22710: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Wikibase Extension: 1.45, 1.44, 1.43, 1.39.

Impacted Vendors

wikimedia 1

Reference Links

https://gerrit.wikimedia.org/r/q/I39d0074b2ad022b6efe6ab3dd8c8ec0f86c6c466 https://phabricator.wikimedia.org/T409737

CVSS v4.0

Source Entity c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Severity LOW

2.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

PASSIVE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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:X/V:X/RE:X/U:X

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.4

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns