CVE-2026-12255
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
ProductMainWP Child
PublishedJul 27, 2026
First seenJul 27, 2026
Weakness typeCWE-287Improper authentication
How to fix
Update
- MainWP Child6.1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MainWP Child | v < 6.1.2 | 6.1.2 |
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