CVE-2025-12486 Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code via XSS in database event logs, requiring minimal user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-12486?
CVE-2025-12486 is a high-severity cross-site scripting vulnerability in Heimdall Data Database Proxy, published on 6 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2025-12486?
How do I fix CVE-2025-12486?
No fix has been published for CVE-2025-12486 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-12486 being exploited?
There is no known exploitation of CVE-2025-12486 in the wild and no public exploit code.
Sources
Also known as GHSA-vjvw-m37j-pxh3.