CVE-2026-58520 — MEDIUM (6.1)

Q: How severe is CVE-2026-58520?

CVE-2026-58520 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-58520?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	>= 1.43.0, < 1.43.9

Related Weaknesses (CWE)

CWE-601

References

https://gerrit.wikimedia.org/r/q/I7a59cc4c351b5aa47ed46f7a14a1105fd1ecc5b5Issue Tracking
https://phabricator.wikimedia.org/T418431Issue Tracking

FAQ

What is CVE-2026-58520?

CVE-2026-58520 is a vulnerability with a CVSS score of 6.1 (MEDIUM). URL redirection to untrusted site ('open redirect') vulnerability in The Wikimedia Foundation Mediawiki - UrlShortener Extension allows Cross-Site Flashing. This issue affects Mediawiki - UrlShortene...

How severe is CVE-2026-58520?

CVE-2026-58520 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-58520?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.