CVE-2021-43977
SmarterTools SmarterMail vulnerability analysis and mitigation

Overview

SmarterTools SmarterMail 16.x through 100.x before 100.0.7803 allows Cross-Site Scripting (XSS). The vulnerability was discovered in April 2021 and disclosed in November 2021 (DIVD CSIRT, CISA).

Technical details

The vulnerability exists in the webmail frontend of SmarterMail, allowing Cross-Site Scripting attacks. The issue affects SmarterMail versions 16.x and versions before 100.0.7803 released on May 13, 2021. The vulnerability has a CVSS score of 4.3, indicating moderate severity (CISA).

Impact

The XSS vulnerability could allow attackers to execute malicious scripts in users' browsers in the context of the SmarterMail webmail interface. This could potentially lead to session hijacking, credential theft, or other client-side attacks (DIVD CSIRT).

Mitigation and workarounds

Users running affected versions should upgrade to SmarterMail Build 7957 (Oct 14, 2021) or later. To verify the installed version, administrators can check the version number by accessing /about/checkup in their SmarterMail portal URL (DIVD CSIRT, SmarterTools).

Additional resources


SourceThis report was generated using AI

Related SmarterTools SmarterMail vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2021-32234CRITICAL9.8
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CVE-2021-43977MEDIUM6.1
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  • cpe:2.3:a:smartertools:smartermail
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CVE-2023-48116MEDIUM5.4
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  • cpe:2.3:a:smartertools:smartermail
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CVE-2023-48115MEDIUM5.4
  • SmarterTools SmarterMailSmarterTools SmarterMail
  • cpe:2.3:a:smartertools:smartermail
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CVE-2023-48114MEDIUM5.4
  • SmarterTools SmarterMailSmarterTools SmarterMail
  • cpe:2.3:a:smartertools:smartermail
NoYesDec 21, 2023

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