{"id":"CVE-2021-31274","aliases":["EUVD-2021-1952","GHSA-2r2w-jrh2-p4gr"],"status":"published","title":"Cross-site Scripting in LibreNMS","description":"In LibreNMS \u003c 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api-\u003edescription variable. As a result, arbitrary Javascript code can get executed.","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":"2026-11-12","score":0.00778,"percentile":0.5634,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-09-08T17:12:29Z","modified":"2026-10-20T10:54:39Z","fixes":[{"ecosystem":"Packagist","package":"librenms/librenms","fixed_in":["21.3.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"librenms/librenms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.3.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"librenms/librenms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.3.0"}]}],"versions":["1.19","1.20","1.20.1","1.21","1.22","1.22.01","1.23","1.24","1.25","1.26","1.27","1.28","1.29","1.30","1.30.01","1.31","1.31.01","1.31.02","1.31.03","1.32","1.32.01","1.33","1.33.01","1.34","1.35","1.36","1.36.01","1.37","1.38","1.39","1.40","1.41","1.42","1.42.01","1.43","1.44","1.45","1.46","1.47","1.48","1.48.1","1.49","1.50","1.50.1","1.51","1.52","1.53","1.53.1","1.54","1.55","1.56","1.57","1.58","1.58.1","1.59","1.60","1.61","1.62","1.62.1","1.62.2","1.63","1.64","1.64.1","1.65","1.65.1","1.66","1.67","1.68","1.69","1.70.0","1.70.1","21.1.0","21.2.0"]}],"products":[{"vendor":"librenms","product":"librenms"}],"references":[{"url":"https://community.librenms.org/t/vulnerability-report-cross-site-scripting-xss-in-the-api-access-page/15431","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/librenms/librenms","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","package","web"]},{"url":"https://github.com/librenms/librenms/pull/12739","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31274","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2r2w-jrh2-p4gr"}],"sources":{"cve":[{"id":"CVE-2021-31274","description":"In LibreNMS \u003c 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api-\u003edescription variable. As a result, arbitrary Javascript code can get executed.","status":"published","published":"2021-09-08T17:12:29Z","modified":"2024-08-03T22:55:53.692Z","updated_at":"2026-11-02T14:33:05.665371Z"}],"euvd":[{"id":"EUVD-2021-1952","description":"In LibreNMS \u003c 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api-\u003edescription variable. As a result, arbitrary Javascript code can get executed.","status":"published","published":"2021-09-08T17:12:29Z","modified":"2024-08-03T22:55:53Z","updated_at":"2026-11-03T03:24:38.977347Z"}],"ghsa":[{"id":"GHSA-2r2w-jrh2-p4gr","title":"Cross-site Scripting in LibreNMS","description":"In LibreNMS \u003c 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api-\u003edescription variable. As a result, arbitrary Javascript code can get executed.","status":"published","published":"2021-09-09T17:08:55Z","modified":"2023-09-19T10:09:45Z","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":"2026-11-02T14:37:06.234371Z"}],"nvd":[{"id":"CVE-2021-31274","description":"In LibreNMS \u003c 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api-\u003edescription variable. 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As a result, arbitrary Javascript code can get executed.","status":"published","published":"2021-09-08T18:15:10.66Z","modified":"2026-10-20T10:54:39.980033363Z","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"}],"updated_at":"2026-11-02T15:44:19.483607Z"},{"id":"GHSA-2r2w-jrh2-p4gr","title":"Cross-site Scripting in LibreNMS","description":"In LibreNMS \u003c 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api-\u003edescription variable. As a result, arbitrary Javascript code can get executed.","status":"published","published":"2021-09-09T17:08:55Z","modified":"2024-02-16T08:06:25.660331Z","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":"2026-11-02T15:46:34.700741Z"}]}}