CVE-2026-12688: 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 payme
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-12688
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-126880.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-12688 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for ProfileGrid WordPress plugin
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-12687: The ProfileGrid WordPress plugin before 5.9.9.8 does not restrict which group an anonymous vis…nvd · 2026-07-30
- lowCVE-2026-12690: The ProfileGrid WordPress plugin before 5.9.9.7 does not perform a capability check on its lic…nvd · 2026-07-24
- mediumCVE-2026-12689: The ProfileGrid WordPress plugin before 5.9.9.7 does not perform any authorization or ownershi…nvd · 2026-07-24
- mediumCVE-2026-11359: The Memberships and User Profiles for WooCommerce – ProfileGrid WooCommerce Integration plugin…nvd · 2026-07-09
- criticalCVE-2026-12073: The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to …nvd · 2026-06-30
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