CVE-2026-33158

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From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, a low-privileged authenticated user can read private asset content by calling assets/edit-image with an arbitrary assetId that they are not authorized to view. The endpoint returns image bytes (or a preview redirect) without enforcing a per-asset view authorization check, leading to potential unauthorized disclosure of private files. This issue has been patched in versions 4.17.8 and 5.9.14."}, {"lang": "es", "value": "Craft CMS es un sistema de gesti\u00f3n de contenido (CMS). Desde la versi\u00f3n 4.0.0-RC1 hasta antes de la versi\u00f3n 4.17.8 y desde la versi\u00f3n 5.0.0-RC1 hasta antes de la versi\u00f3n 5.9.14, un usuario autenticado con bajos privilegios puede leer contenido de activos privados llamando a assets/edit-image con un assetId arbitrario que no est\u00e1 autorizado a ver. El endpoint devuelve bytes de imagen (o una redirecci\u00f3n de vista previa) sin aplicar una verificaci\u00f3n de autorizaci\u00f3n de vista por activo, lo que lleva a una posible divulgaci\u00f3n no autorizada de archivos privados. Este problema ha sido parcheado en las versiones 4.17.8 y 5.9.14."}], "id": "CVE-2026-33158", "lastModified": "2026-06-17T10:37:02.893", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "UNREPORTED", "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": "LOW", "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:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33158", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-24T20:24:35.473349Z", "version": "2.0.3"}}]}, "published": "2026-03-24T18:16:09.750", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/craftcms/cms/commit/7290d91639e5e3a4f7e221dfbef95c9b77331860"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/craftcms/cms/releases/tag/4.17.8"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/craftcms/cms/releases/tag/5.9.14"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/craftcms/cms/security/advisories/GHSA-3pvf-vxrv-hh9c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0-RC1,4.17.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.0-RC1,5.9.14)"}}], "enrichment": {"confidence": 83.0, "confidence_source": "matching", "scores": [{"score": 83.0, "source": "matching"}]}, "original": {"product": "cms", "source": "cna", "vendor": "craftcms"}, "product": "craftcms", "vendor": "craftcms"}], "analysis": {"en": {"generated_at": "2026-03-26T18:59:54.827872+00:00", "value": {"mitigation_remediation": ["Upgrade Craft CMS to version 4.17.8 or later, or to 5.9.14 or later."], "summary": {"action": "Apply Patch", "impact": "Unauthorized Disclosure of Private Asset Contents"}, "threat_synthesis": {"affected_systems": "The affected product is Craft CMS (craftcms:cms). Vulnerable releases include all builds from 4.0.0\u2011RC1 up to not including 4.17.8, and from 5.0.0\u2011RC1 up to but not including 5.9.14.", "description_and_impact": "Craft CMS versions between 4.0.0\u2011RC1 and 4.17.7 and between 5.0.0\u2011RC1 and 5.9.13 expose a flaw where the assets/edit\u2011image endpoint returns image bytes or redirects to a preview without checking whether the authenticated user has permission to view the requested asset. This lack of per\u2011asset authorization allows a low\u2011privileged, authenticated user to retrieve private file contents, potentially leaking sensitive data and violating data confidentiality policies. The weakness is an improper authorization issue (CWE\u2011639).", "risk_and_exploitability": "The CVSS score of 4.9 indicates medium severity, and the EPSS score is below 1%, suggesting low current exploit prevalence. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires the attacker to authenticate to the site with a user that has at least low\u2011privilege status, then craft an HTTP(S) request to assets/edit\u2011image with an arbitrary assetId. No additional privileges or network exposure are needed, making the attack relatively straightforward for an authenticated user within the application."}}}}, "created": "2026-03-25T11:47:00.423170+00:00", "updated": "2026-03-27T09:20:57.942937+00:00", "vendors": ["craftcms", "craftcms$PRODUCT$craftcms"]}