CVE-2026-39840

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows XSS Targeting Non-Script Elements.This issue affects Mediawiki - Cargo Extension: before 3.8.7.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237966	Patch
https://phabricator.wikimedia.org/T416368	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mediawiki:cargo:*:*:*:*:*:*:*:*

History

15 Apr 2026, 23:43

Type	Values Removed	Values Added
References	~~() https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237966 -~~	() https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237966 - Patch
References	~~() https://phabricator.wikimedia.org/T416368 -~~	() https://phabricator.wikimedia.org/T416368 - Exploit, Issue Tracking, Vendor Advisory
First Time		Mediawiki Mediawiki cargo
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
CPE		cpe:2.3:a:mediawiki:cargo::::::::

07 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 20:16

Updated : 2026-04-15 23:43

NVD link : CVE-2026-39840

Mitre link : CVE-2026-39840

CVE.ORG link : CVE-2026-39840

JSON object : View

Products Affected

mediawiki

cargo

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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