{"affected":[{"defaultStatus":"unaffected","product":"Vvveb","source":"CNA: VulnCheck","vendor":"givanz","versions":[{"lessThanOrEqual":"1.0.8.6","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-126378","cwes":["CWE-434"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":9.4,"severity":"critical","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":9.1,"severity":"critical","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},{"score":9.4,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"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/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"},{"score":9.1,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794565060557,"publishedAt":1794562563184,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/givanz/Vvveb/security/advisories/GHSA-xpgr-r6c8-3hpq"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vvveb-through-1.0.8.6-webshell-upload-via-theme-installer-validfile-bypass"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/givanz/Vvveb/security/advisories/GHSA-xpgr-r6c8-3hpq"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/vvveb-through-1.0.8.6-webshell-upload-via-theme-installer-validfile-bypass"}],"remediation":[],"revision":"c3509b50ef91d4e06fff90bd02670ee3c9df7b270cdd0d5a397725fb3afa2058","sources":[{"modifiedAt":1794562563184,"name":"CNA: VulnCheck","retrievedAt":1794564621450,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126378"},{"modifiedAt":1794565060557,"name":"NVD","retrievedAt":1794572191943,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126378"}],"ssvc":null,"status":"published","title":"Vvveb through 1.0.8.6 Webshell Upload via Theme Installer validFile() Bypass","updatedAt":1794572191943}