{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7879", "assignerOrgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "state": "PUBLISHED", "assignerShortName": "ConcreteCMS", "dateReserved": "2026-05-05T18:01:25.067Z", "datePublished": "2026-05-21T21:07:58.943Z", "dateUpdated": "2026-05-21T21:07:58.943Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "shortName": "ConcreteCMS", "dateUpdated": "2026-05-21T21:07:58.943Z"}, "title": "Concrete CMS 9.5.0 and below is vulnerable to File Download Authorization Bypass in submit_password()", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-862", "description": "CWE-862", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-1", "descriptions": [{"lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}], "affected": [{"vendor": "Concrete CMS", "product": "Concrete CMS", "collectionURL": "https://github.com/concretecms/concretecms", "repo": "https://github.com/concretecms/concretecms", "versions": [{"status": "affected", "version": "5.0", "lessThanOrEqual": "9.5.0", "versionType": "git"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In Concrete CMS 9.5.0 and below,\u00a0 the submit_password() method in concrete/controllers/single_page/download_file.php allows unauthorized file access since downloading\npermission-restricted files bypasses the view_file permission check.\u00a0Files without passwords can be downloaded and any user who knows a file's password can download a password protected file regardless of whether they have permission to access the file.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector\u00a0CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N.\u00a0 Thanks\u00a0Youssef Eid for reporting", "supportingMedia": [{"type": "text/html", "base64": false, "value": "In Concrete CMS 9.5.0 and below,&nbsp; the submit_password() method in concrete/controllers/single_page/download_file.php allows unauthorized file access since downloading\npermission-restricted files bypasses the view_file permission check.&nbsp;<div>Files without passwords can be downloaded and any user who knows a file's password can download a password protected file regardless of whether they have permission to access the file.&nbsp;The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector&nbsp;CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N.&nbsp; Thanks&nbsp;Youssef Eid for reporting</div>"}]}], "references": [{"url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes", "tags": ["release-notes"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 6.3, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Youssef Eid", "type": "finder"}], "source": {"defect": ["HackerOne"], "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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