---
id: CVE-2025-12486
title: >-
  Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution
  Vulnerability
summary: >-
  Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution
  Vulnerability. This vulnerability allows remote attackers to execute arbitrary
  code on affected installations of Heimdall Data Database Proxy. Minimal user
  interacti…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
published: '2025-11-06'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T21:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12486'
references:
  - url: 'https://www.zerodayinitiative.com/advisories/ZDI-25-980/'
    label: zdi-disclosures@trendmicro.com
tags:
  - nvd
epss: 0.00493
epssPercentile: 0.40371
zeroDay: true
ingestedAt: '2026-10-07T21:54:14.969Z'
---

## Overview

Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution Vulnerability. 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. Was ZDI-CAN-24755.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.