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CVE Vulnerability Details :

CVE-2026-54759

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-24 Jun, 2026 | 21:21

Updated At-24 Jun, 2026 | 21:21

▼CVE Numbering Authority (CNA)

SiYuan: Lute HTML sanitizer allows `<iframe>` tags in Bazaar package README, leading to arbitrary command execution via SiYuan Electron client

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove <iframe> elements. Combined with the SiYuan Electron client's permissive security configuration, an attacker can include a malicious <iframe> in a Bazaar package README that executes arbitrary commands on the victim's machine when the package details are viewed. No package installation is required. This vulnerability is fixed in 3.7.0.

Affected Products

Vendor

siyuan-note

Product

siyuan

Versions

Affected

< 3.7.0

Problem Types

Type	CWE ID	Description
CWE	CWE-79	CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Type: CWE

CWE ID: CWE-79

Description: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Metrics

Version	Base score	Base severity	Vector
4.0	8.7	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Version: 4.0

Base score: 8.7

Base severity: HIGH

Vector:

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

References

Hyperlink	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-r6v5-4c66-f6pw	x_refsource_CONFIRM

Hyperlink: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-r6v5-4c66-f6pw

Resource:

x_refsource_CONFIRM

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