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Medium 5.3Published Aug 6, 2026

CVE-2026-14936Simple Membership < 4.7.7 - Unauthenticated Payment Bypass via Missing PayPal IPN Receiver Verification

Updated under an hour ago ()

Does this affect you?

It affects Unknown Simple Membership. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

The Simple Membership WordPress plugin before 4.7.7 does not verify that a PayPal payment notification was sent to the site's own configured merchant account before activating a membership, allowing unauthenticated users to activate or extend a membership using a payment made to an arbitrary PayPal account they control.

CVSS
5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-345
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WPScan
NVD analysis
Deferred
Record last updated
Aug 7, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Unknown Simple Membership
unknown:simple_membership (from the name)
before 4.7.7
CNA record

References

  • exploit, vdb-entry, technical-description

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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