What is CVE-2026-103346?

CVE-2026-103346 is a high-severity vulnerability in Tomlister Payflex Payment Gateway, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-10-06.

How severe is CVE-2026-103346?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Tomlister Payflex Payment Gateway

CVE-2026-103346

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tomlister Payflex Payment Gateway

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

patchstack.com/database/wordpress/plugin/payflex-payment-gateway/vulnerability/… (vdb-entry)

Frequently asked questions

What is CVE-2026-103346?: CVE-2026-103346 is a high-severity vulnerability in Tomlister Payflex Payment Gateway, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-10-06.
How severe is CVE-2026-103346?: High severity. CVSS v3 base score is 7.1 out of 10.