Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - UploadWizard Extension allows Cross-Site Scripting (XSS).

This issue affects Mediawiki - UploadWizard Extension: from * before 1.46.1, 1.45.5, 1.43.10.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

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
Wikimedia Foundation Mediawiki - UploadWizard Extension unaffected
Version Status Constraints
* affected < 1.46.1, 1.45.5, 1.43.10

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

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/Iba914c0d7e86f9342ee9cecde3bee0806ec90c84 cve-icon cve-icon
https://phabricator.wikimedia.org/T434619 cve-icon cve-icon
History

Fri, 25 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - UploadWizard Extension allows Cross-Site Scripting (XSS). This issue affects Mediawiki - UploadWizard Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Title UploadWizard Flickr collection and set titles allow DOM XSS
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-09-25T21:00:42.736Z

Reserved: 2026-09-25T19:28:14.430Z

Link: CVE-2026-100381

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-25T22:17:09.027

Modified: 2026-09-25T22:17:09.027

Link: CVE-2026-100381

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-25T23:00:15Z

Weaknesses