XSS in Kubysoft
CVE-2025-59904
Stored Cross-Site Scripting (XSS) vulnerability in Kubysoft, which is triggered through multiple parameters in the '/kForms/app' endpoint. This issue allows malicious scripts to be injected and executed persistently in the context of users accessing the affected resource.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Kubysoft — versions All versions
Weakness classification (CWE)
References
- www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-kubysoft (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-59904?
- CVE-2025-59904 is a medium-severity vulnerability in Kubysoft, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-16.
- How severe is CVE-2025-59904?
- Medium severity. CVSS v3 base score is 5.4 out of 10.