CVE-2025-12140 RCE in Wirtualna Uczelnia
An unauthenticated attacker can execute arbitrary code via insecure Java expression processing in the redirect mechanism.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-12140?
CVE-2025-12140 is a critical code injection vulnerability in Simple SA Wirtualna Uczelnia, published on 27 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The application contains an insecure 'redirectToUrl' mechanism that incorrectly processes the value of the 'redirectUrlParameter' parameter. The application interprets the entered string of characters as a Java expression, allowing an unauthenticated attacer to perform arbitrary code execution. This issue was fixed in version wu#2016.1.5513#0#20251014_113353
Weakness: CWE-95
Which versions are affected by CVE-2025-12140?
How do I fix CVE-2025-12140?
No fix has been published for CVE-2025-12140 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-12140 being exploited?
There is no known exploitation of CVE-2025-12140 in the wild and no public exploit code.
Sources
Also known as GHSA-4cgm-43x9-f8f3.