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CVE-2021-41163

CRITICAL
Published 2021-10-20T22:30:14
Actions:

Expert Analysis

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CVSS Score

V3.1
10.0
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.052
probability
of exploitation in the wild

There is a 5.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.894
Higher than 89.4% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

discourse

discourse

Affected Versions:

tests-passed < 2.8.0.beta7 beta < 2.8.0.beta7 stable < 2.7.9

References

https://github.com/discourse/discourse/security/advisories/GHSA-jcjx-pvpc-qgwq
https://github.com/discourse/discourse/commit/fa3c46cf079d28b086fe1025349bb00223a5d5e9
Published: 2021-10-20T22:30:14
Last Modified: 2024-08-04T02:59:31.566Z
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