{"schema_version":"1","data":[{"id":1720,"advisory_id":"ac6d3508-b079-4c3b-a970-b1e218b1b160","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93872","source_published_at":"2026-09-18T19:56:37.54+00:00","published_at":"2026-10-24T21:06:17.869691+00:00","extraction_method":"structured","technologies":["core-cve","cotonti"],"cve_ids":["CVE-2026-93872"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Cotonti 1.0.0 PHP Object Injection via Comments Plugin Edit Action cb Parameter","summary":"Cotonti 1.0.0 passes the base64-decoded cb parameter to unserialize() without allowed_classes restriction in the comments plugin EditAction. Registered users with comment write permissions can instantiate arbitrary PHP objects and potentially achieve file write or code execution through gadget chains.","evidence":"cve:CVE-2026-93872","products":[{"name":{"value":"Cotonti","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"high","structured":{"id":"CVE-2026-93872","aliases":["CVE-2026-93872"],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","baseScore":7.7,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","userInteraction":"NONE","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","subIntegrityImpact":"NONE","vulnIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnConfidentialityImpact":"HIGH"}},{"format":"CVSS","cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}}],"affected":[{"repo":"https://github.com/Cotonti/Cotonti","vendor":"Cotonti","product":"Cotonti","versions":[{"status":"affected","version":"1.0.0","versionType":"custom","lessThanOrEqual":"1.0.0"}],"packageURL":"pkg:composer/cotonti/cotonti","programFiles":["plugins/comments/controllers/actions/EditAction.php","system/cache.php"],"defaultStatus":"unaffected"}],"modified":"2026-09-24T14:23:20.808Z","provider":"cve","references":["https://github.com/Cotonti/Cotonti/issues/1894","https://github.com/Cotonti/Cotonti/pull/1897","https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/comments/controllers/actions/EditAction.php","https://github.com/Cotonti/Cotonti/blob/1.0.0/system/cache.php","https://github.com/Cotonti/Cotonti","https://www.vulncheck.com/advisories/cotonti-1.0.0-php-object-injection-via-comments-plugin-edit-action-cb-parameter"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-93872","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-09-21T16:42:41.893793Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-21T20:48:04.688Z"}}],"cna":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-24T14:23:20.808Z"}}},"related_cves":[{"value":"CVE-2026-93872","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"}}],"next_after":1720,"next_before":1720}