{"id":"CVE-2018-1000165","aliases":["EUVD-2022-5353","GHSA-vg4f-8v9q-5c3x"],"status":"published","title":"LightSAML Incorrect Access Control vulnerability","description":"LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in src/LightSaml/Model/XmlDSig/ that can result in impersonation of any user from Identity Provider. This vulnerability appears to have been fixed in 1.3.5 and later.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01224,"percentile":0.68993,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-732"],"published":"2018-04-18T19:00:00Z","modified":"2026-10-20T10:49:45Z","fixes":[{"ecosystem":"Packagist","package":"lightsaml/lightsaml","fixed_in":["1.3.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"lightsaml/lightsaml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5"}]}]},{"source":"osv","ecosystem":"Packagist","package":"lightsaml/lightsaml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5"}]}],"versions":["0.1.0","1.0.0","1.0.0-beta.1","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.1.1","1.1.2","1.1.3","1.1.4","1.2.0","1.2.1","1.3.0","1.3.1","1.3.2","1.3.3"]}],"products":[{"vendor":"lightsaml","product":"lightsaml"}],"references":[{"url":"https://github.com/lightSAML/lightSAML/commit/47cef07bb09779df15620799f3763d1b8d32307a","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/lightSAML/lightSAML/releases/tag/1.3.5","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000165","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vg4f-8v9q-5c3x"},{"url":"https://github.com/lightSAML/lightSAML","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-1000165","description":"LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in src/LightSaml/Model/XmlDSig/ that can result in impersonation of any user from Identity Provider. This vulnerability appears to have been fixed in 1.3.5 and later.","status":"published","published":"2018-04-18T19:00:00Z","modified":"2024-08-05T12:33:49.352Z","updated_at":"2026-11-02T14:35:10.685174Z"}],"euvd":[{"id":"EUVD-2022-5353","description":"LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in src/LightSaml/Model/XmlDSig/ that can result in impersonation of any user from Identity Provider. This vulnerability appears to have been fixed in 1.3.5 and later.","status":"published","published":"2018-04-18T19:00:00Z","modified":"2024-08-05T12:33:49Z","updated_at":"2026-11-03T02:39:26.824954Z"}],"ghsa":[{"id":"GHSA-vg4f-8v9q-5c3x","title":"LightSAML Incorrect Access Control vulnerability","description":"LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in `src/LightSaml/Model/XmlDSig/` that can result in impersonation of any user from Identity Provider. 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This vulnerability appears to have been fixed in 1.3.5 and later.","status":"published","published":"2018-04-18T19:29:00.77Z","modified":"2026-06-17T01:32:34.307Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:04:25.506659Z"}],"osv":[{"id":"CVE-2018-1000165","description":"LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in src/LightSaml/Model/XmlDSig/ that can result in impersonation of any user from Identity Provider. 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