CVE-2021-37693

Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta4, when adding additional email addresses to an existing account on a Discourse site an email token is generated as part of the email verification process. Deleting the additional email address does not invalidate an unused token which can then be used in other contexts, including reseting a password.

• CWE-613
• CWE-640

• https://github.com/discourse/discourse/commit/fb14e50741a4880cda22244eded8858e2f5336efPatch, Third Party Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-9377-96f4-cww4Third Party Advisory
• https://github.com/discourse/discourse/commit/fb14e50741a4880cda22244eded8858e2f5336efPatch, Third Party Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-9377-96f4-cww4Third Party Advisory

Published

Aug 13, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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