CVE-2025-56243 Cross-site scripting in n/a
An attacker can execute arbitrary JavaScript in a victim's browser via a malicious URL in the Event Management System.
- 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-2025-56243?
CVE-2025-56243 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Oct 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
A Cross-Site Scripting (XSS) vulnerability was found in the register.php page of PuneethReddyHC Event Management System 1.0, where the event_id GET parameter is improperly handled. An attacker can craft a malicious URL to execute arbitrary JavaScript in the victim s browser by injecting code into this parameter.
Weakness: CWE-79
Which versions are affected by CVE-2025-56243?
It affects 1 product.
Products include Puneethreddyhc Event Management System.
How do I fix CVE-2025-56243?
No fix has been published for CVE-2025-56243 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-2025-56243 being exploited?
There is no known exploitation of CVE-2025-56243 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-pvrc-f6hj-wm35.