Security Advisory

CVE-2026-23645

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-01-16 19:20:06

Last updated 2026-01-16 21:37:58

Assigner GitHub_M

State PUBLISHED

Description

SiYuan is self-hosted, open source personal knowledge management software. Prior to 3.5.4-dev2, a Stored Cross-Site Scripting (XSS) vulnerability exists in SiYuan Note. The application does not sanitize uploaded SVG files. If a user uploads and views a malicious SVG file (e.g., imported from an untrusted source), arbitrary JavaScript code is executed in the context of their authenticated session. This vulnerability is fixed in 3.5.4-dev2.

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