CVE-2026-39839

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.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/+/1237957	Patch
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237977	Patch
https://phabricator.wikimedia.org/T416271	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

15 Apr 2026, 23:50

Type	Values Removed	Values Added
CPE		cpe:2.3:a:mediawiki:cargo::::::::
First Time		Mediawiki Mediawiki cargo
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
References	~~() https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237957 -~~	() https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237957 - Patch
References	~~() https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237977 -~~	() https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237977 - Patch
References	~~() https://phabricator.wikimedia.org/T416271 -~~	() https://phabricator.wikimedia.org/T416271 - Exploit, Issue Tracking, Vendor Advisory

07 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 20:16

Updated : 2026-04-15 23:50

NVD link : CVE-2026-39839

Mitre link : CVE-2026-39839

CVE.ORG link : CVE-2026-39839

JSON object : View

Products Affected

mediawiki

cargo

CWE

CWE-80

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

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