{"id":"CVE-2026-54630","title":"Part-DB: Authenticated RCE via .phar attachment upload served from public/media","summary":"Part-DB is an open source inventory management system for electronic components. Prior to version 2.12.1, the part attachment upload handler stores uploaded files under the web-served media directory using the client-supplied file extens…","severity":"critical","cvss":9.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-434"],"vendor":"Part-DB","product":"Part-DB-server","affected":["Part-DB-server < 2.12.1"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-29T12:43:07.900819Z"},"exploitAvailable":true,"published":"2026-10-23","updated":"2026-10-29","sourceUpdated":"2026-10-29T12:43:48.850Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54630","references":[{"url":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-w5m7-3xf7-6g7g","label":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-w5m7-3xf7-6g7g"},{"url":"https://github.com/Part-DB/Part-DB-server/releases/tag/v2.12.1","label":"https://github.com/Part-DB/Part-DB-server/releases/tag/v2.12.1"}],"tags":["cve.org","exploit-available"],"epss":0.00348,"epssPercentile":0.28466,"ingestedAt":"2026-10-23T04:15:07.558Z","slug":"CVE-2026-54630","body":"## Overview\n\nPart-DB is an open source inventory management system for electronic components. Prior to version 2.12.1, the part attachment upload handler stores uploaded files under the web-served media directory using the client-supplied file extension, and its extension blocklist does not include phar. AttachmentSubmitHandler::renameBlacklistedExtensions() rewrites dangerous extensions (php, phtml, sh, cgi, py, js, html, htaccess, ...) to .txt, but phar is absent from the list, so a .phar file keeps its extension. Public attachments (the default) are written into public/media/, which is the Apache document root. The shipped Apache configuration routes .phar to PHP-FPM, so the stored file is executed as PHP on request. The per-attachment-type extension filter is empty by default and is not consulted by the upload handler in a way that blocks this, and a non-admin user in the default users group can create an attachment type with no filter and attach files to parts. Any authenticated user in the default users group uploads a .phar attachment to a part and fetches it under /media/, executing arbitrary PHP as the www-data web user. Ability to exploit depends on the webserver config, docker image contained the vulnerability by default. This issue has been patched in version 2.12.1.\n\n## Affected\n\n- `Part-DB-server < 2.12.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":65,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":231763,"id":"CVE-2026-54630","ts":1793559585503,"field":"exploit_available","old":"false","new":"true"}]}