Discourse vulnerable to unlimited mentioned users in message serializer
CVE-2023-48297

7.5HIGH

Key Information:

Vendor
discourse
Status
discourse
Vendor
CVE Published:
12 January 2024

Summary

A vulnerability has been identified in Discourse, a platform designed for community discussions, specifically related to its message serialization functionality. The issue arises when the system processes chat mentions like @all and @here, which can lead to a significantly long array of users being included. This has the potential to create performance issues or exploitative scenarios within the application. The vulnerability has been addressed in the updates provided in versions 3.1.4 and beta 3.2.0.beta5.

Affected Version(s)

discourse < 3.1.4 < 3.1.4

discourse >= 3.2.0beta1, < 3.2.0.beta4 < 3.2.0beta1, 3.2.0.beta4

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.