CyberRota Analysis
AI-GeneratedVersions of Siyuan up to 3.7.3 are vulnerable to a server-side template injection that allows local, unauthenticated attackers to exploit the attribute-view Template calculation feature. This vulnerability can lead to unauthorized access to environment variables and DNS lookups, potentially exposing sensitive information from the account running Siyuan. Organizations using affected versions should prioritize upgrading to version 3.7.4 to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
siyuan versions <= 3.7.3 (fixed in v3.7.4) contain a server-side template injection vulnerability in the attribute-view Template calculation feature (introduced in v3.7.0-beta.1). The feature's template engine uses Sprig's unmodified function map, which still exposes the env, expandenv, and getHostByName functions that were removed elsewhere for CVE-2024-55660. A local, unauthenticated attacker (the kernel binds to 127.0.0.1 by default with no per-UID access control) can inject a malicious Template calculation formula to read environment variables belonging to the account running siyuan — including from a separate, unprivileged OS account — and to perform DNS lookups from the server's network position.