Improper Ownership Check Vulnerability in Discourse by Discourse
CVE-2025-68479

7.1HIGH

Key Information:

Vendor

Discourse

Status
Vendor
CVE Published:
28 January 2026

What is CVE-2025-68479?

Discourse, an open-source discussion platform, suffers from a vulnerability that allows unauthorized ownership checks in its subscription endpoints. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, this flaw can enable malicious users to make changes without proper ownership verification. The issue has been addressed in the newer versions, but users are encouraged to update promptly to mitigate any potential security risks.

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Affected Version(s)

discourse < 3.5.4 < 3.5.4

discourse >= 2025.11.0-latest, < 2025.11.2 < 2025.11.0-latest, 2025.11.2

discourse >= 2025.12.0-latest, < 2025.12.1 < 2025.12.0-latest, 2025.12.1

References

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.