VULNERABILITY INTELLIGENCE

CVE-2023-3550

CVSS score7.3 HIGH
EPSS probability1.38%
CISA KEVNot currently listed
Published2023-09-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

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.

Weakness classification

  • help@fluidattacks.com: CWE-79
  • nvd@nist.gov: CWE-79

Primary references