What’s Vulnerable › Vulnerabilities

CVE-2026-24127: Typemill has Reflected XSS via login error view template

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-23 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• typemill: before 2.19.2 — fixed in 2.19.2

How to fix

Upgrade to a fixed version: typemill 2.19.2. Check the vendor advisory for mitigations.

References

• https://github.com/typemill/typemill/commit/b506acd11e80fb9c8db5fa6c2c8ad73580b4e88c
• https://github.com/typemill/typemill/releases/tag/v2.19.2
• https://github.com/typemill/typemill/security/advisories/GHSA-65x4-pjhj-r8wr

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