High severity · published Aug 12, 2026
CVE-2026-72795
SiYuan before v3.7.4 Information Disclosure via Embed Block
8.6
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
siyuan · siyuan-note
before 3.7.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72795
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72795
github.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h6w7-xxcf-w2mq
www.vulncheck.com
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-embed-block
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