CVE-2023-3550

HIGH7.3EPSS 0.18%

mediawiki - security update

Published: 9/25/2023Modified: 3/9/2026
Also known as:DSA-5520-1DEBIAN-CVE-2023-3550DEBIAN-CVE-2023-45360DEBIAN-CVE-2023-45362DEBIAN-CVE-2023-45363

Description

Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator.

Affected packages (4)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.3CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References (7)