{"schema_version":1,"title":"BookStackApp BookStack vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 6 vulnerabilities in BookStackApp BookStack: 0 in the last 7 days and 5 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-89022, was published on 15 September 2026.","url":"https://junglewise.ai/threats/technologies/bookstack","json_url":"https://junglewise.ai/threats/technologies/bookstack.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/bookstack","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":6,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":4,"last_90_days":5,"last_365_days":6},"latest":[{"cve":"CVE-2026-89022","cvss":7.4,"epss":0.0047,"slug":"cve-2026-89022-bookstack-social-login-authentication-bypass","title":"BookStack social login authentication bypass","severity":"high","exploited":false,"published_at":"2026-09-15T17:17:33.36+00:00","url":"https://junglewise.ai/threats/cve-2026-89022-bookstack-social-login-authentication-bypass"},{"cve":"CVE-2026-86285","cvss":4.3,"epss":0.0039,"slug":"cve-2026-86285-bookstack-broken-access-control-in-attachment-edit-endpoint","title":"BookStack broken access control in attachment edit endpoint","severity":"medium","exploited":false,"published_at":"2026-09-07T09:17:17.127+00:00","url":"https://junglewise.ai/threats/cve-2026-86285-bookstack-broken-access-control-in-attachment-edit-endpoint"},{"cve":"CVE-2026-84695","cvss":8.7,"epss":0.0047,"slug":"cve-2026-84695-bookstack-stored-cross-site-scripting-in-drawing-upload-endpoint","title":"BookStack stored cross-site scripting in drawing upload endpoint","severity":"high","exploited":false,"published_at":"2026-09-02T01:17:24.4+00:00","url":"https://junglewise.ai/threats/cve-2026-84695-bookstack-stored-cross-site-scripting-in-drawing-upload-endpoint"},{"cve":"CVE-2026-82450","cvss":8.8,"epss":0.01,"slug":"cve-2026-82450-bookstack-remote-code-execution-in-zip-import","title":"BookStack remote code execution in ZIP import","severity":"high","exploited":false,"published_at":"2026-08-29T14:16:37.93+00:00","url":"https://junglewise.ai/threats/cve-2026-82450-bookstack-remote-code-execution-in-zip-import"},{"cve":"CVE-2026-67204","cvss":5.4,"epss":0.0041,"slug":"cve-2026-67204-bookstack-broken-access-control-in-image-api","title":"BookStack broken access control in image API","severity":"medium","exploited":false,"published_at":"2026-08-24T16:17:17.79+00:00","url":"https://junglewise.ai/threats/cve-2026-67204-bookstack-broken-access-control-in-image-api"},{"cve":"CVE-2026-5484","cvss":5.3,"epss":0.0032,"slug":"cve-2026-5484-bookstack-improper-access-control-in-chapter-export-handler","title":"BookStack improper access control in Chapter Export Handler","severity":"medium","exploited":false,"published_at":"2026-04-03T20:16:05.347+00:00","url":"https://junglewise.ai/threats/cve-2026-5484-bookstack-improper-access-control-in-chapter-export-handler"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"BookStackApp BookStack","slug":"bookstack","vendor":{"name":"BookStackApp","slug":"bookstackapp","url":"https://junglewise.ai/threats/vendors/bookstackapp"},"aliases":[],"category":"cms","homepage":"https://www.bookstackapp.com/","repo_url":"https://github.com/BookStackApp/BookStack","description":"A platform for creating and organizing documentation and wiki content.","url":"https://junglewise.ai/threats/technologies/bookstack"},"most_severe":[{"cve":"CVE-2026-82450","cvss":8.8,"epss":0.01,"slug":"cve-2026-82450-bookstack-remote-code-execution-in-zip-import","title":"BookStack remote code execution in ZIP import","severity":"high","exploited":false,"published_at":"2026-08-29T14:16:37.93+00:00","url":"https://junglewise.ai/threats/cve-2026-82450-bookstack-remote-code-execution-in-zip-import"},{"cve":"CVE-2026-84695","cvss":8.7,"epss":0.0047,"slug":"cve-2026-84695-bookstack-stored-cross-site-scripting-in-drawing-upload-endpoint","title":"BookStack stored cross-site scripting in drawing upload endpoint","severity":"high","exploited":false,"published_at":"2026-09-02T01:17:24.4+00:00","url":"https://junglewise.ai/threats/cve-2026-84695-bookstack-stored-cross-site-scripting-in-drawing-upload-endpoint"},{"cve":"CVE-2026-89022","cvss":7.4,"epss":0.0047,"slug":"cve-2026-89022-bookstack-social-login-authentication-bypass","title":"BookStack social login authentication bypass","severity":"high","exploited":false,"published_at":"2026-09-15T17:17:33.36+00:00","url":"https://junglewise.ai/threats/cve-2026-89022-bookstack-social-login-authentication-bypass"},{"cve":"CVE-2026-67204","cvss":5.4,"epss":0.0041,"slug":"cve-2026-67204-bookstack-broken-access-control-in-image-api","title":"BookStack broken access control in image API","severity":"medium","exploited":false,"published_at":"2026-08-24T16:17:17.79+00:00","url":"https://junglewise.ai/threats/cve-2026-67204-bookstack-broken-access-control-in-image-api"},{"cve":"CVE-2026-5484","cvss":5.3,"epss":0.0032,"slug":"cve-2026-5484-bookstack-improper-access-control-in-chapter-export-handler","title":"BookStack improper access control in Chapter Export Handler","severity":"medium","exploited":false,"published_at":"2026-04-03T20:16:05.347+00:00","url":"https://junglewise.ai/threats/cve-2026-5484-bookstack-improper-access-control-in-chapter-export-handler"},{"cve":"CVE-2026-86285","cvss":4.3,"epss":0.0039,"slug":"cve-2026-86285-bookstack-broken-access-control-in-attachment-edit-endpoint","title":"BookStack broken access control in attachment edit endpoint","severity":"medium","exploited":false,"published_at":"2026-09-07T09:17:17.127+00:00","url":"https://junglewise.ai/threats/cve-2026-86285-bookstack-broken-access-control-in-attachment-edit-endpoint"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}