CVE-2026-12255 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact total

No data.

No data.

No data.

No data.

References

Link	Providers
https://wpscan.com/vulnerability/6ecd37bf-f48a-4f7f-8a93-e7f0475371af/

History

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		https://wpscan.com/vulnerability/6ecd37bf-f48a-4f7f-8a93-e7f0475371af/

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-07-27T06:00:01.619Z

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

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

Link: CVE-2026-12255

Vulnrichment

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

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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