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CVE-2026-103346— WordPress Payflex Payment Gateway plugin <= 2.7.1 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
Tomlister Payflex Payment Gateway
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Tomlister Payflex Payment Gateway（payflex-payment-gateway）中存在不当输入中性化处理导致的网页生成时跨站脚本（Cross-Site Scripting, XSS）漏洞，具体表现为反射型跨站脚本攻击（Reflected XSS）。该问题影响 Payflex Payment Gateway 的 n/a 至 2.7.1 版本。

CVSS 7.1 · High EPSS 0.15% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tomlister Payflex Payment Gateway ≤ 2.7.1 affected
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I. Basic Information for CVE-2026-103346

Vulnerability Information
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Vulnerability Title
WordPress Payflex Payment Gateway plugin <= 2.7.1 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tomlister Payflex Payment Gateway 0 ~ 2.7.1 -

II. Public POCs for CVE-2026-103346

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III. Intelligence Information for CVE-2026-103346

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Vendor Advisories for CVE-2026-103346 (1)

IV. Related Vulnerabilities

Same product: Payflex Payment Gateway
Same vendor: Tomlister
Same weakness: CWE-79

V. Comments for CVE-2026-103346

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