CVE catalog

CVE-2026-58520

URL redirection to untrusted site ('open redirect') vulnerability in The Wikimedia Foundation Mediawiki - UrlShortener Extension allows Cross-Site Flashing. This issue affects Mediawiki - UrlShortene

[CVE catalog]

Severity: Medium · CVSS 6.9CVSS: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: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
Published: Jul 1, 2026, 6:16:35 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.28% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Cpe	mediawiki	Not reported	`1.43.9`	fixed
Cpe	mediawiki	Not reported	`1.44.6`	fixed
Cpe	mediawiki	Not reported	`1.45.4`	fixed
Cpe	mediawiki	Not reported	`1.45.4`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Cpe	mediawiki	cpe	Not reported	`1.43.9`	Not reported	Not reported	Not reported
Cpe	mediawiki	cpe	Not reported	`1.44.6`	Not reported	Not reported	Not reported
Cpe	mediawiki	cpe	Not reported	`1.45.4`	Not reported	Not reported	Not reported
Cpe	mediawiki	cpe	Not reported	`1.45.4`	Not reported	NVD-CVE-2026-58520	Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed: Oct 25, 2026, 4:30:19 PM UTC

References

[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)]