CVE-2026-72795

critical · 9.2

SiYuan versions before v3.7.4 fail to filter embedded block content by publish access in the getBlockDOMWithEmbed and getBlockDOMsWithEmbed endpoints. Attackers can request published blocks containing embed queries to read content from password-protected, hidden, or forbidden documents without authorization.

9.2

CVSS

0.4%

EPSS (exploit prob.)

33rd

EPSS percentile

2026-08-12

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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

Weaknesses

CWE-862

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h6w7-xxcf-w2mq
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-embed-block
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h6w7-xxcf-w2mq

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-72795