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CVE-2026-54630— Part-DB: Authenticated RCE via .phar attachment upload served from public/media

Quick assessment

Affected
Part-DB Part-DB-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Part-DB 是一个用于电子元件的开源库存管理系统。在 2.12.1 版本之前，其零件附件上传处理器会将上传的文件以客户端提供的文件扩展名存储到由 Web 服务器提供的媒体目录中，且其扩展名黑名单未包含 。 方法会将危险扩展名（如 php、phtml、sh、cgi、py、js、html、htaccess 等）重写为 ，但由于 不在该列表中，因此 文件会保留其原始扩展名。默认情况下，公开附件会被写入 目录，而该目录正是 Apache 的文档根目录。随软件分发的 Apache 配置会将 文件路由至 PHP-FPM，导

CVSS 9.6 · Critical
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I. Basic Information for CVE-2026-54630

Vulnerability Information
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Vulnerability Title
Part-DB: Authenticated RCE via .phar attachment upload served from public/media
Source: CVE Program / CVE List V5
Vulnerability Description
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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Part-DB Part-DB-server < 2.12.1 -

II. Public POCs for CVE-2026-54630

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III. Intelligence Information for CVE-2026-54630

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Other References for CVE-2026-54630 (2)

Same Patch Batch · Part-DB · 2026-10-23 · 9 CVEs total

CVE-2026-86055 8.7 HIGH Part-DB: Password Reset Link Poisoning via Host Header Injection leads to pre-authenticati
CVE-2026-54631 6.3 MEDIUM Part-DB: Hardcoded APP_SECRET enables forged remember-me cookie
CVE-2026-54615 6.0 MEDIUM Part-DB: Stored XSS / HTML injection in activity-log Extra column via unsanitized Collecti
CVE-2026-55600 5.7 MEDIUM Part-DB: Stored HTML injection in BOM validation results via unescaped Part name
CVE-2026-59188 5.4 MEDIUM Part-DB: SVG Sanitization Bypass via Extension Spoofing Leads to Stored XSS in Attachment
CVE-2026-86018 5.3 MEDIUM Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads
CVE-2026-86019 5.3 MEDIUM Part-DB: Attachment Size Limit Bypass via API Base64 Upload
CVE-2026-86020 4.6 MEDIUM Part-DB: Spreadsheet Formula Injection in XLSX Part Exports

IV. Related Vulnerabilities

Same product: Part-DB-server
Same vendor: Part-DB
Same weakness: CWE-434

V. Comments for CVE-2026-54630

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