{"id":"CVE-2021-42558","aliases":["EUVD-2021-29526","GHSA-jgxc-wj8j-5rmx"],"status":"published","title":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS...","description":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.","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":"2026-11-11","score":0.01087,"percentile":0.65735,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2022-01-12T19:06:45Z","modified":"2026-10-20T10:55:00Z","exploits":[{"source":"pocgithub","id":"mbadanoiu/CVE-2021-42558","title":"mbadanoiu/CVE-2021-42558","date":"2024-06-09","url":"https://github.com/mbadanoiu/CVE-2021-42558"}],"products":[{"vendor":"mitre","product":"caldera"}],"references":[{"url":"https://github.com/mitre/caldera/releases","tags":["x_refsource_MISC","x_transferred","Release Notes","advisory"]},{"url":"https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42558-Multiple%20XSS-MITRE%20Caldera","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42558"},{"url":"https://github.com/advisories/GHSA-jgxc-wj8j-5rmx"}],"sources":{"cve":[{"id":"CVE-2021-42558","description":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.","status":"published","published":"2022-01-12T19:06:45Z","modified":"2024-08-04T03:38:49.212Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29526","description":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.","status":"published","published":"2022-01-12T19:06:45Z","modified":"2024-08-04T03:38:49Z","updated_at":"2026-11-03T03:24:15.755984Z"}],"ghsa":[{"id":"GHSA-jgxc-wj8j-5rmx","title":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS...","description":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.","status":"published","published":"2022-01-13T00:01:06Z","modified":"2023-02-03T05:04:19Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:53:31.794753Z"}],"nvd":[{"id":"CVE-2021-42558","description":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.","status":"published","published":"2022-01-12T20:15:08.34Z","modified":"2026-06-17T04:09:49.647Z","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":"2026-11-02T14:07:03.418194Z"}],"osv":[{"id":"CVE-2021-42558","description":"An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.","status":"published","published":"2022-01-12T20:15:08.34Z","modified":"2026-10-20T10:55:00.622670088Z","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":"2026-11-02T15:44:21.557945Z"}]}}