SEPTEMBER 29, 2026
Live Feed
Back to database
Case File

CVE-2021-41163

CRITICAL · CVSS 10 EPSS 19.81% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-20 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 10.0. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 19.8% probability of exploitation in the next 30 days. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-41163
Severity
CRITICAL
CVSS
10
EPSS
19.81%

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)