CVE-2026-11575 PhonePe Payment Solutions < 3.1.0 - Unauthenticated Payment Bypass via Forged Callback

High 7.5 Published Updated

Unauthenticated attackers can forge payment callbacks to mark unpaid orders as paid due to missing signature verification in the PhonePe WordPress plugin.

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-2026-11575?

CVE-2026-11575 is a high-severity missing authorization vulnerability in Unknown PhonePe Payment Solutions, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The PhonePe Payment Solutions WordPress plugin before 3.1.0 does not properly verify the authenticity of incoming payment callbacks: the secret used to validate the callback signature is empty on sites configured through the current setup flow, so the expected signature reduces to an unkeyed hash of the request body that anyone can compute. This allows unauthenticated attackers to forge a payment-success notification and mark unpaid WooCommerce orders as paid without any payment being made.

Weakness: CWE-862

Which versions are affected by CVE-2026-11575?

How do I fix CVE-2026-11575?

No fix has been published for CVE-2026-11575 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-2026-11575 being exploited?

There is no known exploitation of CVE-2026-11575 in the wild and no public exploit code.

Sources

Also known as GHSA-vf96-qpw4-cqjr.

Is CVE-2026-11575 in your software?

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