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TI-2026-69976 Aliases CVE-2026-103329GHSA-h768-c99r-wgcc

Super Payments plugin accepts forged webhooks, marking orders paid

Priority LOW 29CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-347.

Summary

The Super Payments WordPress plugin before 1.43.1 does not properly verify the authenticity of incoming payment webhook notifications, because its signing key is empty by default. An unauthenticated remote attacker can forge a valid signature and mark arbitrary WooCommerce orders as paid without payment. The flaw is classified as CWE-347, and a public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00129 2nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Super Payments (Unknown): 1.43.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownSuper Paymentsbefore 1.43.11.43.1Patch availableCNA
  • Super Payments VendorUnknown Affected before 1.43.1 Fixed in 1.43.1 Patch available CNA

Remediation

Update the Super Payments WordPress plugin to version 1.43.1, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Super Payments (Unknown) Fixed in 1.43.1

Timeline

  1. 2026-10-09 Threatist record created from CVE-2026-103329
  2. 2026-10-09 Alias added: GHSA-h768-c99r-wgcc
  3. 2026-10-10 Weakness changed · CISA ADP
  4. 2026-10-10 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences