Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Score Extension.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
The Wikimedia Foundation Mediawiki - Score Extension affected
Version Status Constraints
1.43.7 unaffected —
1.44.4 unaffected —
1.45.2 unaffected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gerrit.wikimedia.org/r/q/I1fb2913bc32328cbc4ecd4b4ad4a4788fb98c56c cve-icon cve-icon
https://phabricator.wikimedia.org/T419186 cve-icon cve-icon
History

Tue, 07 Apr 2026 22:30:00 +0000

Type Values Removed Values Added
Description Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Score Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Score Extension.
Title Stored XSS in Score due to usage of non-reserved data attributes
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-04-07T22:11:03.681Z

Reserved: 2026-04-07T21:25:36.589Z

Link: CVE-2026-39936

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-07T23:16:27.530

Modified: 2026-04-07T23:16:27.530

Link: CVE-2026-39936

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses