CVE-2025-61681

MEDIUM EPSS 12.8%
Published Oct 3, 20259mo ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Oct 3, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
12.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt
CWE-79 Cross-site Scripting Injection

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.