Allegra DatabaseBackupBL Directory Traversal Information Disclosure Vulnerability

October 8th, 2025
ZDI-25-951 ZDI-CAN-27136

CVE ID

CVE-2025-11466

CVSS Score

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

Affected Vendors

Allegra

Affected Products

Allegra

Vulnerability Details

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

The specific flaw exists within the DatabaseBackupBL class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose information in the context of the service account.

Additional Details

Allegra has issued an update to correct this vulnerability. More details can be found at:
https://alltena.com/en/resources/release-notes/release-notes-for-release-8-1-6

Disclosure Timeline

  • 2025-07-08 - Vulnerability reported to vendor
  • 2025-10-08 - Coordinated public release of advisory
  • 2025-10-08 - Advisory Updated

Credit

Swagat

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