CVE-2026-79988

{"id": "CVE-2026-79988", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-79988", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-28T03:55:36.964723Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "7004884b-51e2-48e8-b4a2-5ca29e80453e", "affectedData": [{"vendor": "craftcms", "product": "cms", "versions": [{"status": "affected", "version": "4.0.0-RC1", "lessThan": "4.18.3", "versionType": "semver"}, {"status": "affected", "version": "5.0.0-RC1", "lessThan": "5.10.7", "versionType": "semver"}], "packageName": "craftcms/cms", "collectionURL": "https://packagist.org", "defaultStatus": "unaffected"}]}], "published": "2026-08-27T17:20:49.540", "references": [{"url": "https://github.com/craftcms/cms", "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e"}, {"url": "https://github.com/craftcms/cms/releases/tag/5.10.7", "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e"}, {"url": "https://www.hckrt.com/hacktivity/HCKRT-8RQQ7K", "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e", "description": [{"lang": "en", "value": "CWE-693"}]}], "descriptions": [{"lang": "en", "value": "The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework, leading to authenticated RCE similar to previously disclosed vulnerabilities."}], "lastModified": "2026-08-28T20:20:08.133", "sourceIdentifier": "7004884b-51e2-48e8-b4a2-5ca29e80453e"}