1. Home
  2. CVE Database
  3. CVE-2026-39840
MEDIUM · 6.1

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 iss...

Vulnerability Description

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 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
MediawikiCargo< 3.8.7

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-39840?

CVE-2026-39840 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 iss...

How severe is CVE-2026-39840?

CVE-2026-39840 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-39840?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Cargo.