CVE-2026-27153
Published: Feb 26, 2026
Modified: Mar 2, 2026
Description
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in `can_export_entity?`. The method allowed moderators to export any entity not explicitly blocked instead of restricting to an explicit allowlist. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
| Vendor | Product | Versions |
|---|---|---|
discourse | discourse | affected < 2025.12.2affected >= 2026.1.0-latest, < 2026.1.1affected >= 2026.2.0-latest, < 2026.2.0 |
Weaknesses (CWE)
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now