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Home / Vulnerability Intelligence / CVE-2026-45375

CVE-2026-45375 - Vulnerability Analysis

CriticalCVSS: 9.0

Last Updated: May 14, 2026

SiYuan - Stored XSS

Published: May 14, 2026Updated: May 14, 2026Remote Exploitable

Overview

SiYuan < 3.7.0 contains a stored XSS caused by lack of HTML escaping in the name and version fields of plugin.json and similar files in the Bazaar marketplace, letting attackers execute arbitrary scripts when users open the marketplace tab, exploit requires user to open the marketplace UI.

Severity & Score

Severity: Critical
CVSS Score: 9.0

Impact

Attackers can execute arbitrary scripts in users' browsers, potentially stealing data or performing actions on behalf of the user.

Mitigation

Update to version 3.7.0 or later.

Details

CVE ID
CVE-2026-45375
Severity
Critical
CVSS Score
9.0
Type
stored_xss
Status
rejected

CWE

  • CWE-79

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H