VULNERABILITY INTELLIGENCE

CVE-2020-8138

CVSS score6.5 MEDIUM
EPSS probability1.40%
CISA KEVNot currently listed
Published2020-03-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a malicious calendar URL.

Weakness classification

  • support@hackerone.com: CWE-918
  • nvd@nist.gov: CWE-918

Primary references