What’s Vulnerable › Vulnerabilities
CVE-2021-43721
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2022-03-28 · updated 2026-06-17
- Weakness: CWE-79
Description
Leanote 2.7.0 is vulnerable to Cross Site Scripting (XSS) in the markdown type note. This leads to remote code execution with payload : <video src=x onerror=(function(){require('child_process').exec('calc');})();>
Affected products
- Leanote: 2.7.0
References
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