CVE-2025-66561 SysReptor Vulnerable to an Authenticated Stored Cross-Site Scripting (XSS)
Authenticated users can execute malicious JavaScript in other users' sessions via file uploads, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-66561?
CVE-2025-66561 is a high-severity cross-site scripting vulnerability in Syslifters sysreptor, published on 4 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
SysReptor is a fully customizable pentest reporting platform. Prior to 2025.102, there is a Stored Cross-Site Scripting (XSS) vulnerability allows authenticated users to execute malicious JavaScript in the context of other logged-in users by uploading malicious JavaScript files in the web UI. This vulnerability is fixed in 2025.102.
Weakness: CWE-79
Which versions are affected by CVE-2025-66561?
It affects 1 product.
Products include Syslifters Sysreptor.
How do I fix CVE-2025-66561?
No fix has been published for CVE-2025-66561 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-2025-66561 being exploited?
There is no known exploitation of CVE-2025-66561 in the wild and no public exploit code.
Other vulnerabilities in Syslifters sysreptor
Sources
Also known as GHSA-64vw-v5c4-mgvm.