CVE-2025-62670 - Vulnerability Details - OpenCVE

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - FlexDiagrams Extension allows Stored XSS.This issue affects Mediawiki - FlexDiagrams Extension: master.

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.

Exploitation poc

Automatable yes

Technical Impact partial

Vendors	Products
Mediawiki	Mediawiki

No data.

No data.

References

Link	Providers
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/FlexDiagrams/+/1179692
https://phabricator.wikimedia.org/T402149

History

Mon, 20 Oct 2025 20:00:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 20 Oct 2025 13:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mediawiki Mediawiki mediawiki
Vendors & Products		Mediawiki Mediawiki mediawiki

Sat, 18 Oct 2025 04:45:00 +0000

Type	Values Removed	Values Added
Description		Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - FlexDiagrams Extension allows Stored XSS.This issue affects Mediawiki - FlexDiagrams Extension: master.
Title		Stored XSS through a system message in FlexDiagrams
Weaknesses		CWE-79
References		https://gerrit.wikimedia.org/r/c/mediawiki/extensions/FlexDiagrams/+/1179692 https://phabricator.wikimedia.org/T402149
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'}`

MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2025-10-18T04:29:48.409Z

Updated: 2025-10-20T16:29:12.204Z

Reserved: 2025-10-18T04:03:51.880Z

Link: CVE-2025-62670

Vulnrichment

Updated: 2025-10-20T16:28:58.132Z

NVD

Status : Awaiting Analysis

Published: 2025-10-18T05:15:34.693

Modified: 2025-10-21T19:31:25.450

Link: CVE-2025-62670

Redhat

No data.

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