Vulnerability Database

308,926

Total vulnerabilities in the database

CVE-2021-41163

Discourse is an open source platform for community discussion. In affected versions maliciously crafted requests could lead to remote code execution. This resulted from a lack of validation in subscribe_url values. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. To workaround the issue without updating, requests with a path starting /webhooks/aws path could be blocked at an upstream proxy.

  • Published: Oct 20, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-41163
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 10
  • AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
discourse / discourse 2.8.0-beta1 2.8.0-beta1.x
discourse / discourse 2.8.0-beta2 2.8.0-beta2.x
discourse / discourse 2.8.0-beta3 2.8.0-beta3.x
discourse / discourse 2.8.0-beta4 2.8.0-beta4.x
discourse / discourse 2.8.0-beta5 2.8.0-beta5.x
discourse / discourse 2.8.0-beta6 2.8.0-beta6.x
discourse / discourse - 2.7.9