{"id":"CVE-2026-6249","summary":"Vvveb CMS 1.0.8.2 Remote Code Execution via Media Upload","details":"Vvveb CMS 1.0.8.2 contains a remote code execution vulnerability in its media upload handler that allows authenticated attackers to execute arbitrary operating system commands by uploading a PHP webshell with a .phtml extension. Attackers can bypass the extension deny-list and upload malicious files to the publicly accessible media directory, then request the file over HTTP to achieve full server compromise.","modified":"2026-08-04T11:49:32.330921199Z","published":"2026-04-20T19:57:37.655Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-434"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6249.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6249.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6249"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/vvveb-cms-remote-code-execution-via-media-upload"},{"type":"FIX","url":"https://github.com/givanz/Vvveb/commit/23ac0e8c758d80f3c4d9224763c8b2359648270e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/givanz/vvveb","events":[{"introduced":"8b9db6a408ba35d8ac1dd078823c73f76584d78f"},{"last_affected":"8b9db6a408ba35d8ac1dd078823c73f76584d78f"}],"database_specific":{"extracted_events":[{"introduced":"1.0.8.2"},{"last_affected":"1.0.8.2"}],"source":"AFFECTED_FIELD"}}],"versions":["1.0.8.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6249.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"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"}]}