CVE-2025-2266 Checkout Mestres do WP for WooCommerce 8.6.5 - 8.7.5 - Unauthenticated Arbitrary Options Update

Critical 9.8 Published Updated

Unauthenticated attackers can update arbitrary WordPress options to enable registration and gain administrator access due to missing capability checks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-2266?

CVE-2025-2266 is a critical missing authorization vulnerability in mestresdowp Checkout Mestres do WP for WooCommerce, published on 29 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Checkout Mestres do WP for WooCommerce plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the cwmpUpdateOptions() function in versions 8.6.5 to 8.7.5. This makes it possible for unauthenticated attackers to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site.

Weakness: CWE-862

Which versions are affected by CVE-2025-2266?

How do I fix CVE-2025-2266?

No fix has been published for CVE-2025-2266 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-2266 being exploited?

There is no known exploitation of CVE-2025-2266 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-rw7q-vw4w-74r4.

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