{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44237", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-05T15:42:40.519Z", "datePublished": "2026-05-29T12:46:22.613Z", "dateUpdated": "2026-05-29T14:03:23.779Z"}, "containers": {"cna": {"title": "FreePBX: Authenticated Access can lead to Subsequent OAuth2 Authentication Bypass in API Module", "problemTypes": [{"descriptions": [{"cweId": "CWE-1390", "lang": "en", "description": "CWE-1390: Weak Authentication", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63-8vcc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63-8vcc"}], "affected": [{"vendor": "FreePBX", "product": "security-reporting", "versions": [{"version": "< 17.0.8", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-29T12:46:22.613Z"}, "descriptions": [{"lang": "en", "value": "FreePBX is an open source IP PBX. Prior to 17.0.8, the FreePBX api module's OAuth2 implementation does not sufficiently validate client credentials during token issuance. Knowledge of a valid client_id is required. The validateClient() method in ClientRepository.php unconditionally returns true, allowing any party with knowledge of a valid client_id to obtain OAuth2 access tokens without providing the correct client_secret. This vulnerability is fixed in 17.0.8."}], "source": {"advisory": "GHSA-vgjf-4h63-8vcc", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-29T14:03:12.094259Z", "id": "CVE-2026-44237", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-29T14:03:23.779Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,17.0.8)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "security-reporting", "source": "cna", "vendor": "FreePBX"}, "product": "security-reporting", "vendor": "freepbx"}], "created": "2026-05-29T15:30:04.056722+00:00", "updated": "2026-05-29T15:45:16.198090+00:00", "vendors": ["freepbx", "freepbx$PRODUCT$security-reporting"]}