{"id":"CVE-2021-4026","published":"2021-11-30T19:55:10Z","modified":"2024-08-03T17:16:03Z","title":"Improper Access Control in bookstackapp/bookstack","vendor":"bookstackapp","product":"bookstackapp/bookstack","tier":"tail","description":{"text":"bookstack is vulnerable to Improper Access Control","provenance":"source","from":"CVE.org"},"cvss":{"score":6.5,"severity":"MEDIUM","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00926,"percentile":0.60362,"provenance":"source"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"references":[{"url":"https://huntr.dev/bounties/c6dfa80d-43e6-4b49-95af-cc031bb66b1d","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/bookstackapp/bookstack/commit/b4fa82e3298a15443ca40bff205b7a16a1031d92","tags":["x_refsource_MISC"]}],"priority":{"score":16.6,"factors":[{"name":"EPSS percentile","points":12.07},{"name":"CVSS severity","points":4.55}]},"vendorSlug":"bookstackapp","affectedVersions":[{"vendor":"bookstackapp","product":"bookstackapp/bookstack","versions":[">= unspecified, < 21.11.2"]}],"affected":[{"ecosystem":"Packagist","package":"ssddanbrown/bookstack","vulnerableRanges":["<21.11.2"],"patched":["21.11.2"],"from":["GHSA-jm6p-wfjg-xm7x"],"provenance":"source"}],"euvd":{"id":"EUVD-2021-2546","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-bookstackapp-bookstack-cve-2021-4026","packageHistory":[{"cve":"CVE-2020-26211","published":"2020-11-03","fixed":"0.30.4","kev":false},{"cve":"CVE-2021-3915","published":"2021-11-13","fixed":"21.0.3","kev":false},{"cve":"CVE-2021-3944","published":"2021-12-02","fixed":"21.11","kev":false,"link":{"from":"CVE-2021-3944","to":"CVE-2021-4026","relation":"successor","confidence":"low","kind":"sequence","orderedBy":"description","evidence":[{"kind":"version-step","provenance":"source","package":"Packagist:ssddanbrown/bookstack","fromFixed":"21.11","toFixed":"21.11.2","daysApart":-2}]}},{"cve":"CVE-2021-4026","published":"2021-11-30","fixed":"21.11.2","kev":false},{"cve":"CVE-2021-4119","published":"2021-12-15","fixed":"21.11.3","kev":false,"link":{"from":"CVE-2021-4026","to":"CVE-2021-4119","relation":"successor","confidence":"medium","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Packagist:ssddanbrown/bookstack","fromFixed":"21.11.2","toFixed":"21.11.3","daysApart":15},{"kind":"similar","provenance":"machine","score":1.0,"basis":"same product + CWE + description similarity"}]}},{"cve":"CVE-2021-4194","published":"2022-01-06","fixed":"21.12.1","kev":false},{"cve":"CVE-2022-0877","published":"2022-03-08","fixed":"22.02.3","kev":false}],"package":"Packagist:ssddanbrown/bookstack"}}