{"id":"GHSA-pfrc-5hhq-6hvr","aliases":["CVE-2018-19620"],"title":"Showdoc Unauthenticated Access","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"MODERATE","description":"ShowDoc 2.4.1 allows remote attackers to edit other users' notes by navigating with a modified `page_id`.","severity":"medium","score":4.3,"published":"2022-05-13T01:50:52.000Z","modified":"2025-05-06T23:31:40.561Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"showdoc/showdoc","sources":[{"name":"OSV · GHSA-pfrc-5hhq-6hvr","url":"https://osv.dev/vulnerability/GHSA-pfrc-5hhq-6hvr"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"2.4.2"}],"type":"ECOSYSTEM"}],"versions":["v1.0.0","v1.0.1","v1.0.2","v1.0.3","v1.0.4","v1.0.5","v1.1.0","v1.1.1","v1.1.3","v1.1.4","v1.1.5","v1.2.0","v1.2.1","v1.2.2","v1.2.3","v1.2.4","v1.2.5","v1.2.6","v1.3.0","v1.3.1","v1.3.3","v1.3.4","v1.3.5","v1.3.6","v1.3.7","v1.3.8","v1.4.0","v1.4.1","v1.4.2","v1.4.3","v1.4.4","v1.4.5","v1.4.6","v1.4.7","v1.5.0","v1.5.1","v1.5.2","v1.5.3","v1.6.0","v1.6.1","v1.6.2","v1.7.0","v1.7.1","v1.7.2","v1.8.0","v1.8.1","v1.8.2","v1.8.3","v1.8.4","v1.8.5","v1.8.6","v2.0","v2.0.1","v2.0.10","v2.0.2","v2.0.3","v2.0.4","v2.0.5","v2.0.6","v2.0.7","v2.0.8","v2.0.9","v2.1.0","v2.1.1","v2.1.2","v2.1.3","v2.1.4","v2.1.5","v2.2.0","v2.2.1","v2.3.0","v2.3.1","v2.3.3","v2.4.0","v2.4.1"],"fixed":["2.4.2"]}],"sourceAffected":[],"references":["https://nvd.nist.gov/vuln/detail/CVE-2018-19620","https://github.com/star7th/showdoc/issues/397","https://github.com/star7th/showdoc/commit/bcdb5e3519285bdf81e618b3c9b90d22bc49e13c","https://github.com/CCCCCrash/POCs/tree/master/Web/showdoc/IncorrectAccessControl#0x02-modify","https://github.com/star7th/showdoc","https://github.com/star7th/showdoc/commits/v2.4.2"],"sources":[{"name":"OSV","id":"GHSA-pfrc-5hhq-6hvr","modified":"2025-05-06T23:31:40.561537Z","url":"https://osv.dev/vulnerability/GHSA-pfrc-5hhq-6hvr"}],"assessments":[{"source":"OSV","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T09:15:31.408Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}