---
id: "CVE-2026-55600"
kind: "vulnerability"
aliases: ["CVE-2026-55600"]
title: "Part-DB: stored HTML injection in BOM validation page via part names"
severity: "medium"
cvss: 5.7
epss: 0.00297
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "part-db", "php", "self-hosted"]
not_affected_if: ["single-user", "trusted-editors-only", "version-2.12.2-or-later"]
published_at: "2026-10-23T04:18:17+00:00"
first_seen_at: "2026-10-23T21:57:32+00:00"
updated_at: "2026-10-25T04:10:24+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55600", "first_seen_at": "2026-10-23T21:57:32+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-55600", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# Part-DB: stored HTML injection in BOM validation page via part names

Part-DB renders BOM validation messages with Twig's raw filter, so a part name containing HTML is output unescaped. A user who can edit a part name can inject HTML, links, forms and images into another user's BOM import result page, though the current Content Security Policy appears to block JavaScript execution.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Part-DB version (for example in the admin info page or the composer.lock file) and see whether it is below `2.12.2`
- Look for part names containing HTML tags such as `<a`, `<form` or `<img` in the parts table

## Fix

- Upgrade Part-DB to `2.12.2` or later
- Until upgraded, restrict who can edit part names

## Timeline

- 2026-10-23T21:57:32+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-55600
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-55600

## From the sources

Part-DB is an open source inventory management system for electronic components. Prior to version 2.12.2, Part-DB renders BOM validation information messages using Twig's |raw filter. These messages include translated placeholders populated with user-controlled Part names. A user who can edit a Part name can store HTML markup in the Part name. When another user imports a BOM CSV referencing that Part ID, the malicious Part name is rendered as HTML in the victim's BOM validation result page. This results in a cross-user stored HTML injection issue. JavaScript execution appears to be blocked by the current Content Security Policy, but arbitrary HTML links, forms, images, and CSS-based UI elements can still be injected into a trusted Part-DB page. This issue has been patched in version 2.12.2.

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