SiYuan vulnerable to Stored XSS / RCE via `setBlockAttrs` icon attribute

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.

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对生成代码的控制不恰当(代码注入)

SiYuan 代码注入漏洞

SiYuan是SiYuan开源的一个隐私至上的个人知识管理系统。 SiYuan 3.5.4之前版本存在代码注入漏洞，该漏洞源于/api/attr/setBlockAttrs API允许攻击者将任意HTML属性注入块的icon属性，可能导致存储型跨站脚本攻击，在桌面环境中可能导致远程代码执行。

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