CVE-2021-43977

SmarterTools SmarterMail 16.x through 100.x before 100.0.7803 allows XSS.

• CWE-79

• https://csirt.divd.nl/cases/DIVD-2021-00006/Third Party Advisory
• https://www.smartertools.com/smartermail/release-notes/currentRelease Notes, Vendor Advisory
• https://csirt.divd.nl/cases/DIVD-2021-00006/Third Party Advisory
• https://www.smartertools.com/smartermail/release-notes/currentRelease Notes, Vendor Advisory

Published

Nov 17, 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.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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