Cross-Site Scripting Vulnerability in Discourse Community Platform
CVE-2024-56328

6.5MEDIUM

Key Information:

Vendor
Discourse
Status
Discourse
Vendor
CVE Published:
4 February 2025

Summary

A vulnerability exists within the Discourse platform that allows an attacker to execute arbitrary JavaScript in the browser of unsuspecting users through maliciously crafted Onebox URLs. This vulnerability specifically impacts instances where Content Security Policy (CSP) is disabled. It is crucial for users to upgrade to the latest version of Discourse to mitigate this security risk. For those who cannot upgrade immediately, enabling CSP, disabling inline Oneboxes globally, or allowing specific domains for Oneboxing are recommended mitigation strategies.

Affected Version(s)

discourse stable: <= 3.3.3 <= stable: 3.3.3

discourse beta: <= 3.4.0.beta3 <= beta: 3.4.0.beta3

discourse tests-passed: <= 3.4.0.beta3 <= tests-passed: 3.4.0.beta3

References

https://github.com/discourse/discourse/security/advisorie...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.