Missing Authentication

SiYuan is vulnerable to Missing Authentication. The vulnerability is due to the kernel HTTP server unconditionally trusting all chrome-extension:// origins without authentication and the default empty AccessAuthCode on desktop installations, which allows an attacker controlling a malicious or...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error in the CheckAuth process. An attacker can gain unauthorized administrative access by sending requests from any Chrome or Chromium browser extension, allowing them to exfiltrate data, inject malicious scripts, and...

CVE-2025-68948

SiYuan is self-hosted, open source personal knowledge management software. In versions 3.5.1 and prior, the SiYuan Note application utilizes a hardcoded cryptographic secret for its session store. This unsafe practice renders the session encryption ineffective. Since the sensitive AccessAuthCode ...

CVE-2025-68948

SiYuan Note (pre-3.5.1) stores session data with a hardcoded cryptographic secret, making session encryption ineffective. The AccessAuthCode is kept in the session cookie, so an attacker who obtains or intercepts that cookie can locally decrypt it with the public key, retrieve the code in plain t...

CVE-2025-68948 SiYuan: Information Disclosure and Authentication Bypass via Hardcoded Session Secret

SiYuan is self-hosted, open source personal knowledge management software. In versions 3.5.1 and prior, the SiYuan Note application utilizes a hardcoded cryptographic secret for its session store. This unsafe practice renders the session encryption ineffective. Since the sensitive AccessAuthCode ...

EUVD-2025-205463

SiYuan is self-hosted, open source personal knowledge management software. In versions 3.5.1 and prior, the SiYuan Note application utilizes a hardcoded cryptographic secret for its session store. This unsafe practice renders the session encryption ineffective. Since the sensitive AccessAuthCode ...

CVE-2025-68948 SiYuan: Information Disclosure and Authentication Bypass via Hardcoded Session Secret

SiYuan is self-hosted, open source personal knowledge management software. In versions 3.5.1 and prior, the SiYuan Note application utilizes a hardcoded cryptographic secret for its session store. This unsafe practice renders the session encryption ineffective. Since the sensitive AccessAuthCode ...

PT-2025-53613

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.5.1 Description SiYuan Note application uses a hardcoded cryptographic secret for its session store, making session encryption ineffective. The AccessAuthCode, stored in the session cookie, can be decrypted by an...