{"items":[{"id":"NVI-00004351","kind":"vulnerability","title":"Password Shucking Vulnerability","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c5vj-f36q-p9vg","CVE-2023-27580"],"plain_summary":"OSV carries this publisher advisory for codeigniter4/shield. 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 1.0.0-beta.4 for codeigniter4/shield. Confirm the publisher’s latest guidance.","source_ids":["sr-630e6a9db92f8736adddae8d6385a0b4"],"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-c15680f36669b323e727c8f582e76ba7"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.517%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.44004. Missing scores are unknown.","source_id":"sr-c15680f36669b323e727c8f582e76ba7"}],"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-630e6a9db92f8736adddae8d6385a0b4","url":"https://github.com/advisories/GHSA-c5vj-f36q-p9vg","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-c5vj-f36q-p9vg","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.695Z"},{"id":"sr-c15680f36669b323e727c8f582e76ba7","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-2023-27580","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-630e6a9db92f8736adddae8d6385a0b4"],"technology":"codeigniter4/shield","known_exclusions":[],"conditions_summary":"### Impact\nAn improper implementation was found in the password storage process.\n\nAll hashed passwords stored in Shield v1.0.0-beta.3 or earlier are easier to crack than expected due to the vulnerability. Therefore, they should be removed as soon as possible.\n\nIf an attacker gets (1) the user's hashed password by Shield, and (2) the hashed password (SHA-384 hash without salt) from somewhere, the attacker may easily crack the user's password.\n\n### Patches\nUpgrade to Shield v1.0.0-beta.4 or later.\n\nAfter upgrading, all users’ hashed passwords should be updated (saved to the database).\nSee https://github.com/codeigniter4/shield/blob/develop/UPGRADING.md for details.\n\n### Workarounds\nNone.\n\n### References\n- https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pre-hashing-passwords\n- https://blog.ircmaxell.com/2015/03/security-issue-combining-bcrypt-with.html\n- https://www.scottbrady91.com/authentication/beware-of-password-shucking\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue or discussion in codeigniter4/shield\n* Email us at [security@codeigniter.com](mailto:sec","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.0.0-beta.4"]}],"null_published_at":"2026-11-06T21:03:48.011Z","source_updated_at":"2023-11-08T04:12:06.767Z","source_disclosed_at":"2023-03-13T20:51:07.000Z","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":"2026-10-31T21:42:10.695Z"},{"id":"NVI-00004351","kind":"vulnerability","title":"Password Shucking Vulnerability","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c5vj-f36q-p9vg","CVE-2023-27580"],"plain_summary":"OSV carries this publisher advisory for codeigniter4/shield. 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 1.0.0-beta.4 for codeigniter4/shield. Confirm the publisher’s latest guidance.","source_ids":["sr-630e6a9db92f8736adddae8d6385a0b4"],"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-630e6a9db92f8736adddae8d6385a0b4","url":"https://github.com/advisories/GHSA-c5vj-f36q-p9vg","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-c5vj-f36q-p9vg","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.695Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-630e6a9db92f8736adddae8d6385a0b4"],"technology":"codeigniter4/shield","known_exclusions":[],"conditions_summary":"### Impact\nAn improper implementation was found in the password storage process.\n\nAll hashed passwords stored in Shield v1.0.0-beta.3 or earlier are easier to crack than expected due to the vulnerability. Therefore, they should be removed as soon as possible.\n\nIf an attacker gets (1) the user's hashed password by Shield, and (2) the hashed password (SHA-384 hash without salt) from somewhere, the attacker may easily crack the user's password.\n\n### Patches\nUpgrade to Shield v1.0.0-beta.4 or later.\n\nAfter upgrading, all users’ hashed passwords should be updated (saved to the database).\nSee https://github.com/codeigniter4/shield/blob/develop/UPGRADING.md for details.\n\n### Workarounds\nNone.\n\n### References\n- https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pre-hashing-passwords\n- https://blog.ircmaxell.com/2015/03/security-issue-combining-bcrypt-with.html\n- https://www.scottbrady91.com/authentication/beware-of-password-shucking\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue or discussion in codeigniter4/shield\n* Email us at [security@codeigniter.com](mailto:sec","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.0.0-beta.4"]}],"null_published_at":"2026-10-31T22:12:52.644Z","source_updated_at":"2023-11-08T04:12:06.767Z","source_disclosed_at":"2023-03-13T20:51:07.000Z","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":"2026-10-31T21:42:10.695Z"}],"next_cursor":null,"snapshot_revision":"42594"}