CVE-2026-86020

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 24/100
Published: 2026-10-23 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity Scope Change

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: Required
S: Changed
C: Low
I: Low
A: None

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.

Weakness Classification (2)

Bug Bounty Relevance

24 / 100
✓ Low complexity

CVSS Score

4.6 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.15%
Raw Score 0.001550
Percentile 4.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00155
2026-10-28
0.00155

Intelligence Sources

nvd ref →