Vulnerability Description
KUNO CMS is a fully deployable full-stack blog application. Versions 1.3.13 and below contain validation flaws in its file upload functionality that can be exploited for stored XSS. The upload endpoint only validates file types based on Content-Type headers, lacks file content analysis and extension whitelist restrictions, allowing attackers to upload SVG files containing malicious scripts (disguised as images). When users access the uploaded resource pages, arbitrary JavaScript executes in their browsers. This issue is fixed in version 1.3.14.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/xuemian168/kuno/commit/fc486b5c9091b607f82bf7b354d18f25204f7d
- https://github.com/xuemian168/kuno/releases/tag/v1.3.14
- https://github.com/xuemian168/kuno/security/advisories/GHSA-q3w2-2vqp-gx3r
FAQ
What is CVE-2025-61681?
CVE-2025-61681 is a vulnerability with a CVSS score of 5.4 (MEDIUM). KUNO CMS is a fully deployable full-stack blog application. Versions 1.3.13 and below contain validation flaws in its file upload functionality that can be exploited for stored XSS. The upload endpoin...
How severe is CVE-2025-61681?
CVE-2025-61681 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-61681?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.