CVE-2026-58519 PUBLISHED

Stored XSS through Cargo's map format

Assigner: wikimedia-foundation
Reserved: 01.07.2026 Published: 01.07.2026 Updated: 01.07.2026

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.

This issue affects Mediawiki - Cargo Extension: from * before 3.9.1.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:A
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	Low
Attack Complexity	Low	Integrity	Low	Integrity	Low
Attack Requirements	None	Availability	Low	Availability	Low
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	The Wikimedia Foundation
Product	Mediawiki - Cargo Extension
Versions	Default: unaffected affected from * to 3.9.1 (excl.)

Credits

SomeRandomDeveloper finder

References

Problem Types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') CWE

Impacts

CAPEC-592 Stored XSS