{"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":0.12797,"ingestedAt":"2026-09-09T21:22:45.548Z","slug":"CVE-2026-53468","body":"## Overview\n\nTypemill 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":25.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}