---
id: CVE-2026-53468
title: >-
  Typemill is a flat-file, Markdown-based content management system designed for
  informational documentation websites
summary: >-
  Typemill is a flat-file, Markdown-based content management system designed for
  informational documentation websites. Versions prior to 2.23.0 are vulnerable
  to stored HTML attribute injection in the page metadata fields (`og:title` and
  `…
severity: medium
cvss: 4.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-08-21'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:06:39.057'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53468'
references:
  - url: 'https://github.com/typemill/typemill/releases/tag/v2.23.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/typemill/typemill/security/advisories/GHSA-wg6r-jwmr-p7gr
    label: security-advisories@github.com
  - url: >-
      https://github.com/typemill/typemill/security/advisories/GHSA-wg6r-jwmr-p7gr
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00235
epssPercentile: 0.12869
ingestedAt: '2026-09-09T21:22:45.548Z'
---

## Overview

Typemill is a flat-file, Markdown-based content management system designed for informational documentation websites. Versions prior to 2.23.0 are vulnerable to stored HTML attribute injection in the page metadata fields (`og:title` and `og:description`). An authenticated user with permission to modify page metadata can inject arbitrary HTML attributes into generated `<meta>` tags due to missing output encoding. Under certain browser or DOM interaction scenarios, this may lead to stored cross-site scripting (XSS). Version 2.23.0 fixes the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.