CVE-2026-105436

WordPress MainWP Child plugin <= 6.2.1 - Deserialization of untrusted data vulnerability

Published Oct 8, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Deserialization of Untrusted Data vulnerability in MainWP MainWP Child mainwp-child allows Object Injection.This issue affects MainWP Child: from n/a through 6.2.1.

Remediation

Vendor Solution

Update the WordPress MainWP Child plugin to the latest available version (at least 6.2.2).

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Mainwp
Mainwp mainwp Child
Wordpress-extensions
Wordpress-extensions mainwp Child
Vendors & Products Mainwp
Mainwp mainwp Child
Wordpress-extensions
Wordpress-extensions mainwp Child
Type Values Removed Values Added
Description Deserialization of Untrusted Data vulnerability in MainWP MainWP Child mainwp-child allows Object Injection.This issue affects MainWP Child: from n/a through 6.2.1.
Title WordPress MainWP Child plugin <= 6.2.1 - Deserialization of untrusted data vulnerability
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Oct 9, 2026, 3:15 PM
Reserved
Oct 5, 2026, 1:00 PM
Status
Deferred
Published
Oct 8, 2026, 5:17 PM
Modified
Oct 9, 2026, 4:17 PM