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CVE-2026-86020— Part-DB: Spreadsheet Formula Injection in XLSX Part Exports

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 是一款用于电子元器件的开源库存管理系统。在 2.13.2 版本之前，该系统在部件导入/导出工作流中存在电子表格公式注入漏洞。拥有部件导入权限的已认证用户可以上传包含以公式前缀（例如 =1+1）开头的值的 CSV 文件，并将这些值写入由用户控制的部件字段中。当受影响的部件随后以 XLSX 格式导出时，Part-DB 会调用 PhpSpreadsheet 的 setCellValue() 方法写入攻击者控制的值，但未对电子表格公式字符进行中和处理。因此，导出的 XLSX 文件中包含可执行的电子表格公式单

CVSS 4.6 · Medium
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I. Basic Information for CVE-2026-86020

Vulnerability Information
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Vulnerability Title
Part-DB: Spreadsheet Formula Injection in XLSX Part Exports
Source: CVE Program / CVE List V5
Vulnerability Description
Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB contains a spreadsheet formula injection vulnerability in the part import/export workflow. An authenticated user with permission to import parts can import a CSV file containing formula-prefixed values, such as =1+1, into user-controlled part fields. When the affected part is later exported as an XLSX spreadsheet, Part-DB writes the attacker-controlled value using PhpSpreadsheet's setCellValue() method without neutralising spreadsheet formula characters. As a result, the exported XLSX file contains an executable spreadsheet formula cell rather than a plain text value. If another user exports and opens the spreadsheet, the formula may be evaluated by their spreadsheet software. This issue has been patched in version 2.13.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Part-DB Part-DB-server < 2.13.2 -

II. Public POCs for CVE-2026-86020

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III. Intelligence Information for CVE-2026-86020

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Vendor Advisories for CVE-2026-86020 (1)

Vendor Pages for CVE-2026-86020 (1)

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

CVE-2026-54630 9.6 CRITICAL Part-DB: Authenticated RCE via .phar attachment upload served from public/media
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

IV. Related Vulnerabilities

Same product: Part-DB-server
Same vendor: Part-DB
Same weakness: CWE-20

V. Comments for CVE-2026-86020

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