🛡️ CVE-2026-54759

⚪ Unknown ✅ No Known Exploit CWE-79 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Weakness class

CVE-2026-54759 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2026-54759 is recorded against 1 package.

  • unknown

Timeline and source

Published on 24 June 2026 and last revised on 25 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
github.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-79
Public Exploit ✅ No
Source NVD
Published 2026-06-24
Updated 2026-08-11
Modified 2026-06-25
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown

Similar Threats

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