CVE-2026-103329CWE-347

CVE-2026-103329

Medium · published October 9, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
2.3
In the wild
Unconfirmed
What it is

The Super Payments WordPress plugin before 1.43.1 does not properly verify the authenticity of incoming payment webhook notifications, as the signing key used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid signature and mark arbitrary WooCommerce orders as paid without payment.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00129 · 2.3th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2026-10-09T16:17Z
References (1)
https://wpscan.com/vulnerability/aefba87d-fa4c-4b7c-9436-6e79e966e8a5/ · [email protected]
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 09 OCT 11:03Z
    Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook Signature
    cvelistv5
  • 09 OCT 11:03Z
    Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook Signature
    cvelistv5