{"items":[{"id":"NVI-00005231","kind":"vulnerability","title":"Improper file handling in concrete5/core","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-g3p2-hfqr-9m25","CVE-2021-22968"],"plain_summary":"OSV carries this publisher advisory for concrete5/core. 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 8.5.7 for concrete5/core. Confirm the publisher’s latest guidance.","source_ids":["sr-873614eef34abd99fd686c5ff86f89cf"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2021-22968","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-873614eef34abd99fd686c5ff86f89cf"],"technology":"concrete5/core","known_exclusions":[],"conditions_summary":"A bypass of adding remote files in Concrete CMS (previously concrete5) File Manager leads to remote code execution in Concrete CMS (concrete5) versions 8.5.6 and below. The external file upload feature stages files in the public directory even if they have disallowed file extensions. They are stored in a directory with a random name, but it's possible to stall the uploads and brute force the directory name. You have to be an admin with the ability to upload files, but this bug gives you the ability to upload restricted file types and execute them depending on server configuration. 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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 8.5.7 for concrete5/core. Confirm the publisher’s latest guidance.","source_ids":["sr-873614eef34abd99fd686c5ff86f89cf"],"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-d47852f06c45eb5599f11a4b2092076d"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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They are stored in a directory with a random name, but it's possible to stall the uploads and brute force the directory name. You have to be an admin with the ability to upload files, but this bug gives you the ability to upload restricted file types and execute them depending on server configuration. To fix this, a check for allowed file extensions was added before downloading files to a tmp directory","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 8.5.7"]}],"null_published_at":"2026-10-31T22:13:01.457Z","source_updated_at":"2024-02-16T08:19:28.762Z","source_disclosed_at":"2021-11-23T17:54:26.000Z","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":"2026-10-31T21:42:20.410Z"}],"next_cursor":null,"snapshot_revision":"42594"}