{"id":"CVE-2021-43633","aliases":["EUVD-2021-30545","GHSA-w53f-mxhv-c2p3"],"status":"published","title":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts...","description":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts valid scripts into the chat, the script will be executed on the receiver chat.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00571,"percentile":0.47593,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2022-04-14T12:18:16Z","modified":"2026-06-17T04:11:13Z","products":[{"vendor":"messaging_web_application_project","product":"messaging_web_application"}],"references":[{"url":"https://www.sourcecodester.com/php/14996/messaging-web-application-phpoop-free-source-code.html","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://medium.com/%40shaunwhorton/how-i-found-two-different-xss-vulnerabilities-a491144e8494","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43633"},{"url":"https://medium.com/@shaunwhorton/how-i-found-two-different-xss-vulnerabilities-a491144e8494"},{"url":"https://github.com/advisories/GHSA-w53f-mxhv-c2p3"}],"sources":{"cve":[{"id":"CVE-2021-43633","description":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts valid scripts into the chat, the script will be executed on the receiver chat.","status":"published","published":"2022-04-14T12:18:16Z","modified":"2024-08-04T04:03:08.281Z","updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30545","description":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts valid scripts into the chat, the script will be executed on the receiver chat.","status":"published","published":"2022-04-14T12:18:16Z","modified":"2024-08-04T04:03:08Z","updated_at":"2026-11-03T03:24:13.772922Z"}],"ghsa":[{"id":"GHSA-w53f-mxhv-c2p3","title":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts...","description":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts valid scripts into the chat, the script will be executed on the receiver chat.","status":"published","published":"2022-04-15T00:00:45Z","modified":"2023-01-27T05:01:37Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:41:56.335336Z"}],"nvd":[{"id":"CVE-2021-43633","description":"Sourcecodester Messaging Web Application 1.0 is vulnerable to stored XSS. If a sender inserts valid scripts into the chat, the script will be executed on the receiver chat.","status":"published","published":"2022-04-14T13:15:11.58Z","modified":"2026-06-17T04:11:13.113Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}