Vulnerability DatabaseCVE-2026-39839
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CVE-2026-39839
Published:April 07, 2026
Updated:May 16, 2026
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.
Affected Packages
https://github.com/wikimedia/mediawiki-extensions-Cargo.git (GITHUB):
Affected version(s) >=0.5.1 <3.8.7
Fix Suggestion:
Update to version 3.8.7
Related Resources (3)
https://phabricator.wikimedia.org/T416271
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237957
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237977
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-80
EPSS
Base Score:
0.03