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TI-2026-32346 Aliases CVE-2026-44401GHSA-8vfw-vh7q-p649

Typemill CMS 2.x Persistent XSS via Markdown javascript URI

Priority LOW 21CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Typemill CMS version 2.x contains a persistent cross-site scripting vulnerability in the Markdown parser extension that allows authenticated users with theme-configuration access to inject malicious JavaScript URIs by supplying unsanitized href values in Markdown links. Attackers can craft Markdown links using the javascript: scheme through ParsedownExtension.php or TwigMarkdownExtension.php, storing a persistent payload that executes in the browser of every visitor who clicks the link, enabling session cookie theft, authenticated request forgery, and credential harvesting.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0032 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
typemillTypemill2.0.0 – 2.23.0—No fix listedCNA
  • Typemill Vendortypemill Affected 2.0.0 – 2.23.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44401
  2. 2026-10-03 Alias added: GHSA-8vfw-vh7q-p649

References

Patch 1

Other 2

  • TI-2026-38549 Typemill has Stored HTML Attribute Injection in Metadata Fields CVSS 3.1MEDIUM 4.6
  • TI-2026-49888 typemill - No Rate Limiting on Login Endpoint Enables Unlimited Password Brute-Force CVSS 3.1CRITICAL 9.1
  • TI-2026-50117 Typemill < 2.26.0 Authorization Bypass via Media File Download Route CVSS 4.0HIGH 8.7
  • TI-2022-10879 Typemill v1.5.3 was discovered to contain an arbitrary file upload vulnerability via the… CVSS 3.1HIGH 8.8
  • TI-2026-36348 Typemill < 2.24.0 Path Traversal via ControllerApiImage::getPagemedia() CVSS 4.0HIGH 7.1
  • TI-2026-19445 Typemill has Reflected XSS via login error view template CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences