Quick answers
- Is CVE-2026-112204 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-112204 being exploited in the wild.
- How severe is CVE-2026-112204?
- Informational severity, published 9 November 2026.
- Which products and versions are affected?
- Fundacja Widzialni WidzialniCMS before 2.5.
- Is there a fix for CVE-2026-112204?
- Yes: fixed in 2.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-112204 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-112204?
- Check whether you run Fundacja Widzialni WidzialniCMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2.5
Technical details
This is a reflected XSS vulnerability (CWE-79) in the /index.php endpoint where user input is not properly sanitized before being rendered in the web page. An attacker can inject malicious JavaScript by crafting a specially formatted URL; no authentication or user interaction beyond opening the link is required. A successful exploit allows arbitrary JavaScript execution in the victim's browser context, enabling session theft or account compromise.
Affected products
- Fundacja Widzialni WidzialniCMS before 2.5
Timeline
- 2026-11-09: disclosed