CVE-2026-23852 - SiYuan vulnerable to Stored XSS / RCE via `setBlockAttrs` icon attribute

CVE ID : CVE-2026-23852 Published : Jan. 19, 2026, 8 p.m. | 22 minutes ago Description : SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting (XSS) vulnerability that allows an attacker to inject arbitrary HTML attributes into the `icon` attribute of a block via the `/api/attr/setBlockAttrs` API. The payload is later rendered in the dynamic icon feature in an unsanitized context, leading to stored XSS and, in the desktop environment, potential remote code execution (RCE). This issue bypasses the previous fix for issue `#15970` (XSS → RCE via dynamic icons). Version 3.5.4 contains an updated fix. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...