Security Advisory

CVE-2025-61681

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-10-03 21:46:59

Last updated 2025-10-06 15:45:27

Assigner GitHub_M

State PUBLISHED

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.

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