Is Mediawiki affected by CVE-2026-22713?

CVE-2026-22713 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 5.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available.

CVE-2026-22713

MEDIUM

2026-01-09 c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

5.4

CVSS 3.1

CVSS Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 12, 2026 - 17:47 vuln.today

Public exploit code

Patch Released

Feb 12, 2026 - 17:47 nvd

Patch available

CVE Published

Jan 09, 2026 - 00:15 nvd

MEDIUM 5.4

Description

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

Analysis

Cross-site scripting (XSS) in MediaWiki's GrowthExperiments extension (versions 1.39, 1.43, 1.44, 1.45) allows authenticated attackers to inject malicious scripts through improper input validation, with public exploit code available. An attacker with user privileges can exploit this vulnerability to perform actions on behalf of other users or steal sensitive information due to the low complexity attack vector and user interaction requirement. …

Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +27

POC: +20

CVE-2026-22713 vulnerability details – vuln.today

Back

CVE-2026-22713

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Remediation

Analysis

Full analysis requires sign-in

Priority Score

Share

CVE-2026-22713

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Remediation

Full analysis requires sign-in

Priority Score

Share

External POC / Exploit Code