CVE-2025-59904: Stored Cross-Site Scripting vulnerability in Kubysoft

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-16 · updated 2026-06-17
Weakness: CWE-79

Description

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.

Affected products

Kubysoft: all versions

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-kubysoft

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