Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.

This issue affects MediaWiki - WikiLambda extension: before 1.46.1.
Published: 2026-09-29
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 30 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Wikimedia
Wikimedia mediawiki-wikilambda Extension
Vendors & Products Wikimedia
Wikimedia mediawiki-wikilambda Extension
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 22:45:00 +0000

Type Values Removed Values Added
Description Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS. This issue affects MediaWiki - WikiLambda extension: before 1.46.1.
Title WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML
Weaknesses CWE-79
References

Subscriptions

Wikimedia Mediawiki-wikilambda Extension
cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-09-30T20:01:03.715Z

Reserved: 2026-09-29T22:29:32.001Z

Link: CVE-2026-103046

cve-icon Vulnrichment

Updated: 2026-09-30T18:15:21.246Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T23:17:22.450

Modified: 2026-09-30T21:17:07.800

Link: CVE-2026-103046

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T20:15:05Z

Weaknesses