PT-2026-54919 · Mediawiki · Urlshortener Extension

Dalangi_Wmf + 1 · Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-58520

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Name of the Vulnerable Software and Affected Versions Mediawiki - UrlShortener Extension versions prior to 1.43.9 Mediawiki - UrlShortener Extension version 1.44.6 Mediawiki - UrlShortener Extension version 1.45.4

Description An open redirect issue exists which allows URL redirection to untrusted sites, potentially enabling Cross-Site Flashing.

Recommendations Update Mediawiki - UrlShortener Extension to a version newer than 1.43.9. Update Mediawiki - UrlShortener Extension to a version newer than 1.44.6. Update Mediawiki - UrlShortener Extension to a version newer than 1.45.4.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2026-58520

Affected Products

Urlshortener Extension

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-58520 · Security Note
• https://twitter.com/CVEnew/status/2072388049510510630 · Twitter Post
• https://gerrit.wikimedia.org/r/q/I7a59cc4c351b5aa47ed46f7a14a1105fd1ecc5b5 · Note
• https://twitter.com/infoflowcloud/status/2072389985743806515 · Twitter Post
• https://phabricator.wikimedia.org/T418431 · Note