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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Joomla! CMS", "vendor": "Joomla! Project", "versions": [{"status": "affected", "version": "1.0.0-5.4.6"}, {"status": "affected", "version": "6.0.0-6.1.2"}]}, {"defaultStatus": "unaffected", "product": "Joomla! Framework Filesystem package", "vendor": "Joomla! Project", "versions": [{"status": "affected", "version": "1.0.0-3.3.0"}, {"status": "affected", "version": "4.0.0-4.2.0"}]}], "source": "security@joomla.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2 - The default list of dangerous files did not include SHTML files. On servers that executed these files, that could lead to code execution."}], "id": "CVE-2026-73373", "lastModified": "2026-08-18T17:17:03.197", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@joomla.org", "type": "Secondary"}]}, "published": "2026-08-18T16:18:17.173", "references": [{"source": "security@joomla.org", "url": "https://developer.joomla.org/security-centre/1077-20260810-core-unrestricted-uploads-of-shtml-files.html"}, {"source": "security@joomla.org", "url": "https://www.joomla.org/"}], "sourceIdentifier": "security@joomla.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "security@joomla.org", "type": "Secondary"}]}

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