VULNERABILITY INTELLIGENCE

CVE-2023-2793

CVSS score6.5 MEDIUM
EPSS probability0.56%
CISA KEVNot currently listed
Published2023-06-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references