CVE-2026-40731

WordPress ChapterOne theme <= 1.7 - Local File Inclusion vulnerability

Published Jun 17, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Description
Unauthenticated Local File Inclusion in ChapterOne <= 1.7 versions.

Remediation

Vendor Solution

Update the WordPress ChapterOne Theme to the latest available version (at least 1.8).

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mikado-themes
Mikado-themes chapterone
Mikado-themes halstein
Vendors & Products Mikado-themes
Mikado-themes chapterone
Mikado-themes halstein
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Unauthenticated Local File Inclusion in ChapterOne <= 1.7 versions.
Title WordPress ChapterOne theme <= 1.7 - Local File Inclusion vulnerability
Weaknesses CWE-98
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Jun 17, 2026, 2:32 PM
Reserved
Apr 15, 2026, 9:19 AM
Status
Deferred
Published
Jun 17, 2026, 1:20 PM
Modified
Oct 26, 2026, 12:10 AM