XSS in Leanote
CVE-2021-43721
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');})();>
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.010 (59.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Leanote — versions 2.7.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2021-43721?
- CVE-2021-43721 is a medium-severity vulnerability in Leanote, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-03-28.
- How severe is CVE-2021-43721?
- Medium severity. CVSS v3 base score is 6.1 out of 10.