User Registration & Membership < 5.2.2 - Unauthenticated PayPal Webhook Signature Verification Bypass Leading to Membership Activation
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.1epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
The User Registration & Membership WordPress plugin before 5.2.2 does not verify the authenticity of incoming payment-provider webhook notifications before acting on them, allowing unauthenticated attackers to forge a payment-approved event and activate a paid membership subscription without completing a real payment.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
Unknown · User Registration & Membershippublic PoCs found — 1
cve_referencewpscan.com/vulnerability/faf55649-8f76-4abf-a6b9-0d0774e22d29/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.