Advisory Details

October 30th, 2025

Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution Vulnerability

ZDI-25-980
ZDI-CAN-24755

CVE ID CVE-2025-12486
CVSS SCORE 8.8, AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Heimdall Data
AFFECTED PRODUCTS Database Proxy
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Minimal user interaction is required to exploit this vulnerability.

The specific flaw exists within the handling of the database event logs. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of arbitrary script. An attacker can leverage this vulnerability to interact with the application in the context of the target user.
ADDITIONAL DETAILS

Fixed in release build 25.03.01.10
https://www.heimdalldata.com/release-notes/
DISCLOSURE TIMELINE
  • 2025-03-11 - Vulnerability reported to vendor
  • 2025-10-30 - Coordinated public release of advisory
  • 2025-10-30 - Advisory Updated
CREDIT Mehmet INCE (@mdisec) from PRODAFT.com
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