{"items":[{"id":"NVI-00004099","kind":"vulnerability","title":"Cross-Site Scripting in BookStack","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-5vf7-q87h-pg6w","CVE-2020-11055"],"plain_summary":"OSV carries this publisher advisory for ssddanbrown/bookstack. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 0.29.2 for ssddanbrown/bookstack. Confirm the publisher’s latest guidance.","source_ids":["sr-57e0559c1ac5b5bc260eabf1bdc11a16"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-cc83bf13d958b82ec6f3cc9ce2c922df"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T02:48:57.423Z","value":"3.5 LOW (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-1842b6a888088155e4fa748debbdf4f4"},{"kind":"CVSS","as_of":"2026-06-17T02:48:57.423Z","value":"6.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1842b6a888088155e4fa748debbdf4f4"},{"kind":"CVSS","as_of":"2026-06-17T02:48:57.423Z","value":"5.4 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-1842b6a888088155e4fa748debbdf4f4"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.782%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56015. Missing scores are unknown.","source_id":"sr-cc83bf13d958b82ec6f3cc9ce2c922df"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-57e0559c1ac5b5bc260eabf1bdc11a16","url":"https://github.com/advisories/GHSA-5vf7-q87h-pg6w","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5vf7-q87h-pg6w","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.927Z"},{"id":"sr-1842b6a888088155e4fa748debbdf4f4","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11055","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2020-11055","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T22:06:59.494Z"},{"id":"sr-cc83bf13d958b82ec6f3cc9ce2c922df","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2020-11055","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-57e0559c1ac5b5bc260eabf1bdc11a16"],"technology":"ssddanbrown/bookstack","known_exclusions":[],"conditions_summary":"### Impact\n\nA user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines.\n\nThis most impacts scenarios where not-trusted users are given permission to create comments.\n\n### Patches\n\nThe issue was addressed in BookStack v0.29.2.\n\nAfter upgrading, The command `php artisan bookstack:regenerate-comment-content` should be ran to remove any pre-existing dangerous content. \n\n### Workarounds\n\nComments can be disabled in the system settings to prevent them being shown to users. Alternatively, comment creation permissions can be altered as required to only those who are trusted but this will not address existing exploitation of this vulnerability. \n\n### References\n\n* BookStack Beta v0.29.2\n* JVN#41035278\n* BookStack Blog Post\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [the BookStack Gi","public_affected_ranges":["ECOSYSTEM: introduced 0.18.0; fixed 0.29.2"]}],"null_published_at":"2026-11-06T21:03:48.037Z","source_updated_at":"2026-09-10T03:48:45.764Z","source_disclosed_at":"2020-05-07T21:10:26.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:59.927Z"},{"id":"NVI-00004099","kind":"vulnerability","title":"Cross-Site Scripting in BookStack","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-5vf7-q87h-pg6w","CVE-2020-11055"],"plain_summary":"OSV carries this publisher advisory for ssddanbrown/bookstack. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 0.29.2 for ssddanbrown/bookstack. Confirm the publisher’s latest guidance.","source_ids":["sr-57e0559c1ac5b5bc260eabf1bdc11a16"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1842b6a888088155e4fa748debbdf4f4"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-17T02:48:57.423Z","value":"3.5 LOW (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-1842b6a888088155e4fa748debbdf4f4"},{"kind":"CVSS","as_of":"2026-06-17T02:48:57.423Z","value":"6.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1842b6a888088155e4fa748debbdf4f4"},{"kind":"CVSS","as_of":"2026-06-17T02:48:57.423Z","value":"5.4 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-1842b6a888088155e4fa748debbdf4f4"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-57e0559c1ac5b5bc260eabf1bdc11a16","url":"https://github.com/advisories/GHSA-5vf7-q87h-pg6w","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5vf7-q87h-pg6w","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.927Z"},{"id":"sr-1842b6a888088155e4fa748debbdf4f4","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11055","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2020-11055","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T22:06:59.494Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-57e0559c1ac5b5bc260eabf1bdc11a16"],"technology":"ssddanbrown/bookstack","known_exclusions":[],"conditions_summary":"### Impact\n\nA user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines.\n\nThis most impacts scenarios where not-trusted users are given permission to create comments.\n\n### Patches\n\nThe issue was addressed in BookStack v0.29.2.\n\nAfter upgrading, The command `php artisan bookstack:regenerate-comment-content` should be ran to remove any pre-existing dangerous content. \n\n### Workarounds\n\nComments can be disabled in the system settings to prevent them being shown to users. Alternatively, comment creation permissions can be altered as required to only those who are trusted but this will not address existing exploitation of this vulnerability. \n\n### References\n\n* BookStack Beta v0.29.2\n* JVN#41035278\n* BookStack Blog Post\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [the BookStack Gi","public_affected_ranges":["ECOSYSTEM: introduced 0.18.0; fixed 0.29.2"]}],"null_published_at":"2026-10-31T22:27:03.542Z","source_updated_at":"2026-09-10T03:48:45.764Z","source_disclosed_at":"2020-05-07T21:10:26.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.927Z"},{"id":"NVI-00004099","kind":"vulnerability","title":"Cross-Site Scripting in BookStack","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5vf7-q87h-pg6w","CVE-2020-11055"],"plain_summary":"OSV carries this publisher advisory for ssddanbrown/bookstack. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 0.29.2 for ssddanbrown/bookstack. Confirm the publisher’s latest guidance.","source_ids":["sr-57e0559c1ac5b5bc260eabf1bdc11a16"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-57e0559c1ac5b5bc260eabf1bdc11a16","url":"https://github.com/advisories/GHSA-5vf7-q87h-pg6w","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5vf7-q87h-pg6w","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.927Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-57e0559c1ac5b5bc260eabf1bdc11a16"],"technology":"ssddanbrown/bookstack","known_exclusions":[],"conditions_summary":"### Impact\n\nA user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines.\n\nThis most impacts scenarios where not-trusted users are given permission to create comments.\n\n### Patches\n\nThe issue was addressed in BookStack v0.29.2.\n\nAfter upgrading, The command `php artisan bookstack:regenerate-comment-content` should be ran to remove any pre-existing dangerous content. \n\n### Workarounds\n\nComments can be disabled in the system settings to prevent them being shown to users. Alternatively, comment creation permissions can be altered as required to only those who are trusted but this will not address existing exploitation of this vulnerability. \n\n### References\n\n* BookStack Beta v0.29.2\n* JVN#41035278\n* BookStack Blog Post\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [the BookStack Gi","public_affected_ranges":["ECOSYSTEM: introduced 0.18.0; fixed 0.29.2"]}],"null_published_at":"2026-10-31T22:12:52.628Z","source_updated_at":"2026-09-10T03:48:45.764Z","source_disclosed_at":"2020-05-07T21:10:26.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:59.927Z"}],"next_cursor":null,"snapshot_revision":"42594"}