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CVE-2026-40770— WordPress Coupon Affiliates plugin <= 7.5.3 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
RelyWP Coupon Affiliates
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.

relywp coupon affiliates是relywp个人开发者的一个推广联盟返利插件。 RelyWP Coupon Affiliates 7.5.3及之前版本存在跨站脚本漏洞，该漏洞源于容易受到跨站脚本攻击。

CVSS 7.1 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
RelyWP Coupon Affiliates n/a≤ 7.5.3 affected
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I. Basic Information for CVE-2026-40770

Vulnerability Information
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Vulnerability Title
WordPress Coupon Affiliates plugin <= 7.5.3 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Scripting (XSS) in Coupon Affiliates <= 7.5.3 versions.
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
Vulnerability Title
RelyWP Coupon Affiliates 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
relywp coupon affiliates是relywp个人开发者的一个推广联盟返利插件。 RelyWP Coupon Affiliates 7.5.3及之前版本存在跨站脚本漏洞，该漏洞源于容易受到跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
RelyWP Coupon Affiliates n/a ~ 7.5.3 -

II. Public POCs for CVE-2026-40770

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

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III. Intelligence Information for CVE-2026-40770

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Same Patch Batch · RelyWP · 2026-06-15 · 3 CVEs total

CVE-2026-49068 7.5 HIGH WordPress Coupon Affiliates plugin <= 7.8.1 - Sensitive Data Exposure vulnerability
CVE-2026-40799 5.8 MEDIUM WordPress Simple Cloudflare Turnstile plugin <= 1.38.0 - Broken Authentication vulnerabili

IV. Related Vulnerabilities

Same product: Coupon Affiliates
Same vendor: RelyWP
Same weakness: CWE-79

V. Comments for CVE-2026-40770

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