The MainWP Child WordPress plugin before 6.1.2 does not verify the requester's identity in its site-registration request handler when password authentication has been disabled for the targeted account, allowing an unauthenticated attacker to obtain a valid authentication session as that account, including an administrator, by naming its login in a single registration request.
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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 05 Aug 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Mainwp
Mainwp mainwp Child
Wordpress
Wordpress wordpress
Vendors & Products Mainwp
Mainwp mainwp Child
Wordpress
Wordpress wordpress

Mon, 27 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-287
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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 27 Jul 2026 06:30:00 +0000

Type Values Removed Values Added
Description The MainWP Child WordPress plugin before 6.1.2 does not verify the requester's identity in its site-registration request handler when password authentication has been disabled for the targeted account, allowing an unauthenticated attacker to obtain a valid authentication session as that account, including an administrator, by naming its login in a single registration request.
Title MainWP Child < 6.1.2 - Unauthenticated Administrator Authentication Bypass via Passwordless Site Registration
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-07-27T15:50:54.586Z

Reserved: 2026-06-15T08:48:55.176Z

Link: CVE-2026-12255

cve-icon Vulnrichment

Updated: 2026-07-27T15:49:39.516Z

cve-icon NVD

Status : Deferred

Published: 2026-07-27T07:16:24.283

Modified: 2026-07-27T20:33:01.673

Link: CVE-2026-12255

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T10:00:03Z

Weaknesses