VULNERABILITY INTELLIGENCE

CVE-2022-39241

CVSS score7.6 HIGH
EPSS probability0.65%
CISA KEVNot currently listed
Published2022-11-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Description

Discourse is a platform for community discussion. A malicious admin could use this vulnerability to perform port enumeration on the local host or other hosts on the internal network, as well as against hosts on the Internet. Latest `stable`, `beta`, and `test-passed` versions are now patched. As a workaround, self-hosters can use `DISCOURSE_BLOCKED_IP_BLOCKS` env var (which overrides `blocked_ip_blocks` setting) to stop webhooks from accessing private IPs.

Weakness classification

  • security-advisories@github.com: CWE-918
  • nvd@nist.gov: CWE-918

Primary references