CVE-2026-12688: Unknown Profilegrid

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

The ProfileGrid WordPress plugin before 5.9.9.7 does not verify PayPal IPN notifications before granting paid group membership, allowing unauthenticated attackers to forge a payment notification and mark any user as a paid member of any group without any payment being made.

Affected products

• Unknown Profilegrid: before 5.9.9.7 (fixed in 5.9.9.7)

Published 2026-07-24. Last modified 2026-07-24.