CVE-2026-72803
🔶 mediumSummary
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.
CVSS Score
5.8
Medium
EPSS Score
-
Published Date
2026-08-12
First Seen: 2026-08-13
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 32.1% of all 344,170 vulnerabilities in our database.
#233,690
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Aug 12, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Shirshakhtml (reporter)
SSVC data provided by
CISA
Last Modified
2026-08-12
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS Vector 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)