CVE-2025-52097 Cross-site scripting in n/a
Attackers can execute arbitrary code via reflected XSS in InstantForum.NET by exploiting un-sanitized query string parameters.
- 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-2025-52097?
CVE-2025-52097 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Oct 2026. 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
Cross Site Scripting vulnerability in InstantASP ltd, InstantForum.NET v.4.1.4 allows an attacker to execute arbitrary code via reflecting un-sanitized input from query string parameters directly into the HTML response without proper output encoding
Weakness: CWE-79
Which versions are affected by CVE-2025-52097?
How do I fix CVE-2025-52097?
No fix has been published for CVE-2025-52097 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-2025-52097 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52097 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-f4qw-x63m-jfrp.