{"id":"CVE-2021-3279","aliases":["EUVD-2021-26617","GHSA-8rfj-4jpm-266m"],"status":"published","title":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","description":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","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":"2026-11-10","score":0.00839,"percentile":0.58133,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2021-07-19T12:05:31Z","modified":"2026-06-17T04:04:52Z","exploits":[{"source":"pocgithub","id":"rafaelchriss/CVE-2021-3279","title":"rafaelchriss/CVE-2021-3279","date":"2022-04-23","url":"https://github.com/rafaelchriss/CVE-2021-3279"}],"products":[{"vendor":"fortics","product":"szchat"}],"references":[{"url":"https://borrachariadofael.sz.chat/webchat/conversation/6009c625415e206dc77172d3","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://www.youtube.com/watch?v=H9ttpjFVDgA","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3279"},{"url":"https://github.com/advisories/GHSA-8rfj-4jpm-266m"}],"sources":{"cve":[{"id":"CVE-2021-3279","description":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","status":"published","published":"2021-07-19T12:05:31Z","modified":"2024-08-03T16:53:16.818Z","updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-26617","description":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","status":"published","published":"2021-07-19T12:05:31Z","modified":"2024-08-03T16:53:16Z","updated_at":"2026-11-03T03:25:13.531128Z"}],"ghsa":[{"id":"GHSA-8rfj-4jpm-266m","title":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","description":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","status":"published","published":"2022-05-24T19:08:23Z","modified":"2023-01-30T05:00:53Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:17.249643Z"}],"nvd":[{"id":"CVE-2021-3279","description":"sz.chat version 4 allows injection of web scripts and HTML in the message box.","status":"published","published":"2021-07-19T13:15:08.543Z","modified":"2026-06-17T04:04:52.97Z","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":"2026-11-02T14:06:55.747384Z"}]}}