CVE-2026-58520

Medium

Description

URL redirection to untrusted site ('open redirect') vulnerability in The Wikimedia Foundation Mediawiki - UrlShortener Extension allows Cross-Site Flashing. This issue affects Mediawiki - UrlShortener Extension: from * before 1.43.9, 1.44.6, 1.45.4.

SeverityMedium

CVSS6.1

Exploit probability—

Product

Mediawiki

PublishedJul 1, 2026

First seenJul 1, 2026

Weakness typeCWE-601Open redirect

How to fix

Update

mediawiki mediawiki1.43.9, 1.44.6, 1.45.4 or later

Affected products

Product	Affected versions	Fixed in
mediawiki mediawiki	1.43.0 ≤ v < 1.43.9, 1.44.0 ≤ v < 1.44.6, 1.45.0 ≤ v < 1.45.4	1.43.9, 1.44.6, 1.45.4

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