SmarterTools SmarterMail Missing Authorization Information Disclosure Vulnerability

November 13th, 2026
ZDI-26-996 ZDI-CAN-33567

CVE ID

CVE-2026-126968

CVSS Score

6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors

SmarterTools

Affected Products

SmarterMail

Vulnerability Details

This vulnerability allows remote attackers to disclose sensitive information on affected installations of SmarterTools SmarterMail. Authentication is required to exploit this vulnerability.

The specific flaw exists within the handling of email attachments. The issue results from the lack of authorization prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose sensitive information in the context of a target user.

Additional Details

Fixed in SmarterMail Build 9735


Disclosure Timeline

  • 2026-08-20 - Vulnerability reported to vendor
  • 2026-11-13 - Coordinated public release of advisory
  • 2026-11-13 - Advisory Updated

Credit

Shaber Tseng

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