CVE-2026-58519 | Improper neutralization of input during web page generation … | CVSS 6.9 MEDIUM

Description

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.

Metadata

CVE ID: CVE-2026-58519
State: PUBLISHED
Assigner: wikimedia-foundation
Reserved: 2026-07-01 03:40 UTC
Published: 2026-07-01 03:59 UTC
Last updated: 2026-07-01 12:29 UTC
Primary CWE: CWE-79
CWE-79 Improper neutralization of input during web page gene…
Vendor / Product: The Wikimedia Foundation / Mediawiki - Cargo Extension
Sources: cve.org · NVD

Severity & Metrics

6.9 MEDIUM CVSS 4.0

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
The Wikimedia Foundation	Mediawiki - Cargo Extension	—	* < 3.9.1

Weakness (CWE)

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

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.9	MEDIUM	4.0	cna	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

References (2)