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CVE

CWE

Training

CVE-2025-61681

Published: Oct 3, 2025

Modified: Oct 6, 2025

PUBLISHED

CVSS v3.1

5.4

MEDIUM

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.

Vendor	Product	Versions
xuemian168	kuno	affected `< 1.3.14`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

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

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