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TI-2026-82289 Aliases CVE-2026-88928GHSA-jcp7-hvh9-8xxq

Signature bypass in PAYCOMET for WooCommerce allows token overwrite

Priority LOW 34CWE-287Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.

Summary

The PAYCOMET for WooCommerce WordPress plugin from 5.36 before 5.46 does not verify the cryptographic signature on its payment notification endpoint when the request references a tokenisation operation (CWE-287). An unauthenticated remote attacker can overwrite the stored payment token of existing orders and delete saved card records. 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 PAYCOMET for WooCommerce WordPress plugin before 5.46 does not verify the cryptographic signature on its payment notification endpoint when the request references a tokenisation operation, allowing unauthenticated attackers to overwrite the stored payment token associated with existing orders and delete saved card records.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00164 5th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed PAYCOMET for WooCommerce (Unknown): 5.46

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
UnknownPAYCOMET for WooCommerce5.36 to before 5.465.46Patch availableCNA
  • PAYCOMET for WooCommerce VendorUnknown Affected 5.36 to before 5.46 Fixed in 5.46 Patch available CNA

Remediation

Upgrade PAYCOMET for WooCommerce to 5.46.

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

  • Fix · CNA PAYCOMET for WooCommerce (Unknown) Fixed in 5.46

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-88928
  2. 2026-10-29 Alias added: GHSA-jcp7-hvh9-8xxq
  3. 2026-10-29 CVSS score added · CISA ADP
  4. 2026-10-29 Weakness changed · CISA ADP
  5. 2026-10-29 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