CVE-2026-90987 Easy PayPal & Stripe Buy Now Button 1.8 - 2.0.5 - Unauthenticated Payment Amount Manipulation via Client-Supplied Price

Medium 5.3 Published Updated

Unauthenticated attackers can manipulate payment amounts by supplying arbitrary prices, bypassing intended pricing logic in the Easy PayPal & Stripe Buy Now Button 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-2026-90987?

CVE-2026-90987 is a medium-severity vulnerability in Unknown Easy PayPal & Stripe Buy Now Button, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Easy PayPal & Stripe Buy Now Button WordPress plugin before 2.0.6 does not derive the payment amount on the server, taking it from a client-supplied field, so an unauthenticated attacker sets an arbitrary lower price for a purchase.

Weakness: CWE-472

Which versions are affected by CVE-2026-90987?

How do I fix CVE-2026-90987?

No fix has been published for CVE-2026-90987 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-90987 being exploited?

There is no known exploitation of CVE-2026-90987 in the wild and no public exploit code.

Sources

Also known as GHSA-x5h3-rq2w-f7cx.

Is CVE-2026-90987 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free