SiYuan versions before 3.7.4 contain a cross-site request forgery vulnerability in the session-cookie authentication branch of CheckAuth() that lacks Origin/Referer validation and sets no explicit SameSite attribute on session cookies. Attackers can craft malicious web pages that perform unauthorized actions on behalf of authenticated users by submitting requests with valid session cookies, relying on browser default SameSite policies rather than server-enforced protections.
Metrics
Affected Vendors & Products
References
History
Tue, 18 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 17 Aug 2026 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | SiYuan versions before 3.7.4 contain a cross-site request forgery vulnerability in the session-cookie authentication branch of CheckAuth() that lacks Origin/Referer validation and sets no explicit SameSite attribute on session cookies. Attackers can craft malicious web pages that perform unauthorized actions on behalf of authenticated users by submitting requests with valid session cookies, relying on browser default SameSite policies rather than server-enforced protections. | |
| Title | SiYuan before 3.7.4 Cross-Site Request Forgery via CheckAuth | |
| First Time appeared |
B3log
B3log siyuan |
|
| Weaknesses | CWE-352 | |
| CPEs | cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* | |
| Vendors & Products |
B3log
B3log siyuan |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-08-17T11:04:37.950Z
Updated: 2026-08-18T14:34:36.624Z
Reserved: 2026-08-17T10:31:04.592Z
Link: CVE-2026-74867
Updated: 2026-08-18T14:33:56.074Z
Status : Received
Published: 2026-08-17T11:16:40.897
Modified: 2026-08-18T15:17:10.470
Link: CVE-2026-74867
No data.