{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47936", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-02-01T11:24:18.717Z", "datePublished": "2026-05-10T12:43:54.993Z", "dateUpdated": "2026-05-10T12:43:54.993Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-05-10T12:43:54.993Z"}, "title": "OpenCATS 0.9.4 Remote Code Execution via Resume Upload", "descriptions": [{"lang": "en", "value": "OpenCATS 0.9.4 contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary commands by uploading malicious PHP files disguised as resume attachments. Attackers can upload PHP payloads through the careers job application endpoint and execute system commands via POST requests to the uploaded file in the upload directory."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authentication for Critical Function", "cweId": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "Opencats", "product": "OpenCATS", "versions": [{"version": "0", "lessThanOrEqual": "0.9.4", "status": "affected", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:opencats:opencats:*:*:*:*:*:*:*:*", "versionEndIncluding": "0.9.4"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 9.3, "baseSeverity": "CRITICAL", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://www.exploit-db.com/exploits/50585", "name": "ExploitDB-50585", "tags": ["exploit"]}, {"url": "https://www.opencats.org/", "name": "Official Product Homepage", "tags": ["product"]}, {"url": "https://github.com/opencats/OpenCATS", "name": "Product Reference", "tags": ["product"]}, {"name": "VulnCheck Advisory: OpenCATS 0.9.4 Remote Code Execution via Resume Upload", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/opencats-remote-code-execution-via-resume-upload"}], "credits": [{"lang": "en", "value": "Nicholas Ferreira - https://github.com/Nickguitar", "type": "finder"}], "x_generator": {"engine": "vulncheck"}}}}

{}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.9.4]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenCATS", "source": "cna", "vendor": "Opencats"}, "product": "opencats", "vendor": "opencats"}], "created": "2026-05-10T14:45:13.966914+00:00", "updated": "2026-05-10T15:30:14.971637+00:00", "vendors": ["opencats", "opencats$PRODUCT$opencats"]}