Medium severity · published Sep 8, 2021
CVE-2021-40377
SmarterTools SmarterMail 16.x before build 7866 has stored XSS
5.4
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SM
Smartermail · Smartertools
16.0.6345 before 16.3.7866 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40377
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40377
Release Notes
https://www.smartertools.com/smartermail/release-notes/current
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