Medium 5.4Published Oct 3, 2025

CVE-2025-61681Kuno is Vulnerable to Stored XSS Attack via SVG File Upload

Updated under an hour ago (Oct 27, 2026, 11:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for xuemian168 kuno

Exploited in the last 30 days

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: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-79, CWE-434
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 6, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

xuemian168 kuno xuemian168:kuno (from the name)	before 1.3.14	CNA record

References

References

https://github.com/xuemian168/kuno/security/advisories/GHSA-q3w2-2vqp-gx3r	x-refsource-confirm
https://github.com/xuemian168/kuno/commit/fc486b5c9091b607f82bf7b354d18f25204f7dc6	x-refsource-misc
https://github.com/xuemian168/kuno/releases/tag/v1.3.14	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.