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 is stored within the session cookie, an attacker who intercepts or obtains a user's encrypted session cookie (e.g., via session hijacking) can locally decrypt it using the public key. Once decrypted, the attacker can retrieve the AccessAuthCode in plain text and use it to authenticate or take over the session.
Metrics
Affected Vendors & Products
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References
History
Sat, 27 Dec 2025 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 is stored within the session cookie, an attacker who intercepts or obtains a user's encrypted session cookie (e.g., via session hijacking) can locally decrypt it using the public key. Once decrypted, the attacker can retrieve the AccessAuthCode in plain text and use it to authenticate or take over the session. | |
| Title | SiYuan: Information Disclosure and Authentication Bypass via Hardcoded Session Secret | |
| Weaknesses | CWE-321 | |
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cvssV4_0
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-12-27T00:21:31.864Z
Reserved: 2025-12-26T16:36:24.151Z
Link: CVE-2025-68948
Vulnrichment
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NVD
Status : Received
Published: 2025-12-27T01:15:42.720
Modified: 2025-12-27T01:15:42.720
Link: CVE-2025-68948
Redhat
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OpenCVE Enrichment
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