{"items":[{"id":"NVI-00007589","kind":"vulnerability","title":"Concrete CMS is vulnerable to PHP Object Injection via unserialize() calls in the Workflow, Form block, and File/Set components","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-52pr-7vmf-2w7x","CVE-2026-7888"],"plain_summary":"OSV carries this publisher advisory for concrete5/concrete5. 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 9.5.2 for concrete5/concrete5. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-7888","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.082Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-e179f4e38596c882c0ed0cdb4f88b95c"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the Workflow, Form block, and File/Set components that lack the allowed_classes restriction. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been placed in the database. 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