{"id":"CVE-2021-41917","aliases":["EUVD-2021-28915","GHSA-xqp5-p8c3-h4gm"],"status":"published","title":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or...","description":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.","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":"2026-11-11","score":0.00568,"percentile":0.47512,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-08T15:33:33Z","modified":"2026-06-17T04:09:03Z","products":[{"vendor":"webtareas_project","product":"webtareas"}],"references":[{"url":"https://n4nj0.github.io/advisories/webtareas-multiple-vulnerabilities-i/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41917"},{"url":"https://github.com/advisories/GHSA-xqp5-p8c3-h4gm"}],"sources":{"cve":[{"id":"CVE-2021-41917","description":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.","status":"published","published":"2021-10-08T15:33:33Z","modified":"2024-08-04T03:22:25.608Z","updated_at":"2026-11-02T14:32:59.105382Z"}],"euvd":[{"id":"EUVD-2021-28915","description":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.","status":"published","published":"2021-10-08T15:33:33Z","modified":"2024-08-04T03:22:25Z","updated_at":"2026-11-03T03:24:16.784119Z"}],"ghsa":[{"id":"GHSA-xqp5-p8c3-h4gm","title":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or...","description":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.","status":"published","published":"2022-05-24T19:17:03Z","modified":"2023-01-30T05:02:36Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:40.912111Z"}],"nvd":[{"id":"CVE-2021-41917","description":"webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.","status":"published","published":"2021-10-08T16:15:08.25Z","modified":"2026-06-17T04:09:03.193Z","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":"2026-11-02T14:06:59.689345Z"}]}}