---
id: CVE-2026-55464
aliases:
  - GHSA-r52f-r9v5-66xr
title: 'Snipe-IT vulnerable to stored XSS via Markdown custom field '
summary: 'Snipe-IT vulnerable to stored XSS via Markdown custom field '
severity: medium
cvss: 5.4
cwe:
  - CWE-79
vendor: snipe
product: snipe/snipe-it
ecosystem: composer
affected:
  - snipe/snipe-it <= 8.6.1
patched:
  - snipe/snipe-it 8.6.2
published: '2026-08-28'
updated: '2026-08-28'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-r52f-r9v5-66xr'
references:
  - url: >-
      https://github.com/grokability/snipe-it/security/advisories/GHSA-r52f-r9v5-66xr
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55464'
  - url: >-
      https://github.com/grokability/snipe-it/commit/006981cccffce1739e24d3b680b676f772f40e2d
  - url: 'https://github.com/grokability/snipe-it/releases/tag/v8.6.2'
  - url: 'https://github.com/advisories/GHSA-r52f-r9v5-66xr'
tags:
  - ghsa
  - composer
epss: 0.00295
epssPercentile: 0.22378
ingestedAt: '2026-08-28T18:23:37.759Z'
---

## Overview

### Impact
CommonMark is configured with `html_input => 'escape'`, which blocks raw HTML injection. However, javascript: URIs in Markdown hyperlinks are not sanitized. A user with `assets.edit` permission can inject a malicious link into any markdown-textarea custom field. Any user who opens the asset detail page and clicks the link executes arbitrary JavaScript in their browser session.

## Affected packages

- `snipe/snipe-it <= 8.6.1`

## Remediation

Upgrade to a patched release:

- `snipe/snipe-it 8.6.2`