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
References
History
Fri, 02 Jan 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
B3log
B3log siyuan |
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| Weaknesses | CWE-798 | |
| CPEs | cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* | |
| Vendors & Products |
B3log
B3log siyuan |
|
| Metrics |
cvssV3_1
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Mon, 29 Dec 2025 23:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Siyuan
Siyuan siyuan |
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| Vendors & Products |
Siyuan
Siyuan siyuan |
Mon, 29 Dec 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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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 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-12-27T00:21:31.864Z
Updated: 2025-12-29T16:51:19.102Z
Reserved: 2025-12-26T16:36:24.151Z
Link: CVE-2025-68948
Updated: 2025-12-29T16:43:23.248Z
Status : Analyzed
Published: 2025-12-27T01:15:42.720
Modified: 2026-01-02T19:30:38.353
Link: CVE-2025-68948
No data.