CVE-2026-24127 | THREATINT

Description

Typemill is a flat-file, Markdown-based CMS designed for informational documentation websites. A reflected Cross-Site Scripting (XSS) exists in the login error view template `login.twig` of versions 2.19.1 and below. The `username` value can be echoed back without proper contextual encoding when authentication fails. An attacker can execute script in the login page context. This issue has been fixed in version 2.19.2.

PUBLISHED Reserved 2026-01-21 | Published 2026-01-23 | Updated 2026-01-26 | Assigner GitHub_M

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-116: Improper Encoding or Escaping of Output

Product status

< v2.19.2

affected

References

github.com/...pemill/security/advisories/GHSA-65x4-pjhj-r8wr

github.com/...ommit/b506acd11e80fb9c8db5fa6c2c8ad73580b4e88c

github.com/typemill/typemill/releases/tag/v2.19.2

cve.org (CVE-2026-24127)

nvd.nist.gov (CVE-2026-24127)

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