{"id":"CVE-2021-27436","aliases":["EUVD-2021-14190","GHSA-h79w-h983-cvxf"],"status":"published","title":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an...","description":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.","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":0.00714,"percentile":0.54024,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-03-18T21:24:57Z","modified":"2026-06-17T03:44:51Z","products":[{"vendor":"advantech","product":"webaccess\\/scada"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-075-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27436"},{"url":"https://github.com/advisories/GHSA-h79w-h983-cvxf"}],"sources":{"cve":[{"id":"CVE-2021-27436","description":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.","status":"published","published":"2021-03-18T21:24:57Z","modified":"2024-08-03T20:48:17.186Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-14190","description":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.","status":"published","published":"2021-03-18T21:24:57Z","modified":"2024-08-03T20:48:17Z","updated_at":"2026-11-03T03:24:49.368497Z"}],"ghsa":[{"id":"GHSA-h79w-h983-cvxf","title":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an...","description":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.","status":"published","published":"2022-05-24T22:28:41Z","modified":"2023-01-30T05:05:35Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:47:18.801591Z"}],"nvd":[{"id":"CVE-2021-27436","description":"WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.","status":"published","published":"2021-03-18T22:15:13.617Z","modified":"2026-06-17T03:44:51.553Z","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":"2026-11-02T14:06:50.805771Z"}]}}