CVE-2026-39841
MEDIUM EPSS 5.4%
Published Apr 7, 20262mo ago · Modified Jun 17, 20261w ago
6.3 CVSS 4.0
Published Apr 7, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
5.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available
Weaknesses 2
CWE-79 Cross-site Scripting Injection
CWE-80
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| mediawiki | cargo | * | <3.8.7 |
References 2
- gerrit.wikimedia.org https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237973
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T416389
Remediation
- gerrit.wikimedia.org https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237973