---
cve: "CVE-2026-58520"
severity: "MEDIUM"
cvss: 6.9
epss: "18%"
vendor: "The Wikimedia Foundation"
kev: false
exploited: false
published: "2026-07-01 18:16:35"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T03:48:28+02:00"
---

# CVE-2026-58520

> 6.9 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 50755a861e6e748cf8bac24e8cdd5e83db018081 (Commit)
- a36f3bc851a8ae3377ee5602b7e2a355d59e7b0e (Commit)

## Referenzen

- <https://phabricator.wikimedia.org/T418431>
- <https://gerrit.wikimedia.org/r/q/I7a59cc4c351b5aa47ed46f7a14a1105fd1ecc5b5>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-58520) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_