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Cross-site scripting in Payflex Payment Gateway WordPress plugin

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Tomlister Payflex Payment Gateway plugin for WordPress, from n/a through 2.7.1, is affected. Input is not neutralized during web page generation, which allows reflected cross-site scripting (CWE-79). An unauthenticated remote attacker can run script in a victim's browser after the victim interacts with attacker-supplied content.

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

Description from the CNA

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tomlister Payflex Payment Gateway payflex-payment-gateway allows Reflected XSS.This issue affects Payflex Payment Gateway: from n/a through 2.7.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00142 3rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
tomlisterPayflex Payment Gatewayup to 2.7.1—No fix listedCNA
  • Payflex Payment Gateway Vendortomlister Affected up to 2.7.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Payflex Payment Gateway.

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

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-103346
  2. 2026-10-06 Alias added: GHSA-9hmp-g9pr-gr8c
  3. 2026-10-06 CISA SSVC decision points changed
  4. 2026-10-06 Priority changed: MEDIUM → LOW

References

  • TI-2024-31925 WordPress Payflex Payment Gateway plugin <= 2.6.1 - Open Redirection vulnerability CVSS 3.1MEDIUM 4.7

Sources