Medium severity · published Jul 24, 2026
CVE-2026-12688
ProfileGrid < 5.9.9.7 - Unauthenticated Payment Bypass and Forced Group Membership via PayPal IPN Forgery
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
ProfileGrid ·
before 5.9.9.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12688
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12688
wpscan.com
https://wpscan.com/vulnerability/b62a2c10-78da-4a7d-a6e1-f50ebf0763db/
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ProfileGrid < 6.0.0.0 - Subscriber+ Group Join Request Disclosure via pm_get_all_requests_from_group