CVE-2021-40377
Last modified
CVE-2021-40377 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. SmarterTools SmarterMail 16.x before build 7866 has stored XSS. The application fails to sanitize email content, thus allowing one to inject HTML and/or JavaScript into a page that will then be processed and stored by the application.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
Description
SmarterTools SmarterMail 16.x before build 7866 has stored XSS. The application fails to sanitize email content, thus allowing one to inject HTML and/or JavaScript into a page that will then be processed and stored by the application.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Smartertools | Smartermail | >= 16.0.6345, < 16.3.7866 |
References
- https://www.smartertools.com/smartermail/release-notes/currentRelease Notes, Vendor Advisory
- https://www.smartertools.com/smartermail/release-notes/currentRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- 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.
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