CVE-2026-72803
SiYuan before v3.7.4 Information Disclosure via getBlockAttrs
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 12, 2026
- Updated
- Aug 14, 2026
- Reserved
- Aug 10, 2026
Description
SiYuan versions before v3.7.4 fail to enforce publish-access checks in the getBlockAttrs and batchGetBlockAttrs endpoints. Attackers can retrieve block attributes including names, aliases, memos, and custom fields from protected documents by sending POST requests with block IDs.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N | VulnCheck |
| 3.1 | 5.8 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-qvq9-hq6p-v378)vendor-advisory
- VulnCheck Advisory: SiYuan before v3.7.4 Information Disclosure via getBlockAttrsthird-party-advisory
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