{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126378", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-10T21:25:31.550Z", "datePublished": "2026-11-13T09:36:03.184Z", "dateUpdated": "2026-11-13T09:36:03.184Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-13T09:36:03.184Z"}, "datePublic": "2026-10-29T00:00:00.000Z", "title": "Vvveb through 1.0.8.6 Webshell Upload via Theme Installer validFile() Bypass", "descriptions": [{"lang": "en", "value": "Vvveb through 1.0.8.6 contains a file upload vulnerability in the theme installer validFile() function that uses strpos() instead of strict path matching. Attackers with admin credentials can upload a ZIP containing a PHP file whose path includes /theme.php to achieve remote code execution on nginx deployments."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Unrestricted Upload of File with Dangerous Type", "cweId": "CWE-434", "type": "CWE"}]}], "affected": [{"vendor": "givanz", "product": "Vvveb", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "custom", "lessThanOrEqual": "1.0.8.6"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:vvveb:vvveb:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.0.8.6"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 9.4, "baseSeverity": "CRITICAL"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL"}}], "references": [{"url": "https://github.com/givanz/Vvveb/security/advisories/GHSA-xpgr-r6c8-3hpq", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-xpgr-r6c8-3hpq)"}, {"name": "VulnCheck Advisory: Vvveb through 1.0.8.6 Webshell Upload via Theme Installer validFile() Bypass", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/vvveb-through-1.0.8.6-webshell-upload-via-theme-installer-validfile-bypass"}], "credits": [{"lang": "en", "value": "de3erve-hunter", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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