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SmarterTools SmarterMail Cross-Site Scripting Vulnerability in MAPI Requests

Vulnerability

A cross-site scripting (XSS) vulnerability has been identified in SmarterTools SmarterMail versions prior to 9526. This issue arises when MAPI requests are not properly sanitized, allowing for the injection of malicious scripts.

Impact

Exploitation of this vulnerability allows for cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser.

Remediation

Users are advised to update to SmarterTools SmarterMail version 9526 or later, where this vulnerability has been fixed.

Added: Feb 16, 2026, 5:21 PM
Updated: Feb 16, 2026, 5:21 PM

Vulnerability Rating

Custom Algorithm
spread
5.2
impact
1.7
exploitability
6.5
remediation
7.7
relevance
3.1
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.