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TI-2026-38549 Aliases CVE-2026-53468

Typemill has Stored HTML Attribute Injection in Metadata Fields

Priority MEDIUM 54CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

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 `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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00424 36th percentileScored 2026-11-07
Fix Fixed typemill (typemill): 2.23.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
typemilltypemillbefore 2.23.02.23.0Patch availableCNA
  • typemill Vendortypemill Affected before 2.23.0 Fixed in 2.23.0 Patch available CNA

Remediation

  • Fix · CNA typemill (typemill) Fixed in 2.23.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53468

References

Other 2

  • 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
  • TI-2026-32346 Typemill CMS 2.x Persistent XSS via Markdown javascript URI CVSS 4.0MEDIUM 4.6

Sources

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