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CVE-2026-65510— WordPress PeproDev Ultimate Invoice plugin <= 2.2.6 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
Pepro Dev. Group PeproDev Ultimate Invoice
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.

WordPress PeproDev Ultimate Invoice是WordPress基金会的一款CMS发票管理组件。 WordPress PeproDev Ultimate Invoice 2.2.6及之前版本存在跨站脚本漏洞，该漏洞源于存在未经验证的跨站脚本，可能导致攻击者执行恶意脚本。

CVSS 7.1 · High EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
Pepro Dev. Group PeproDev Ultimate Invoice n/a≤ 2.2.6 affected
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I. Basic Information for CVE-2026-65510

Vulnerability Information
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Vulnerability Title
WordPress PeproDev Ultimate Invoice plugin <= 2.2.6 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Scripting (XSS) in PeproDev Ultimate Invoice <= 2.2.6 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
WordPress PeproDev Ultimate Invoice 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress PeproDev Ultimate Invoice是WordPress基金会的一款CMS发票管理组件。 WordPress PeproDev Ultimate Invoice 2.2.6及之前版本存在跨站脚本漏洞，该漏洞源于存在未经验证的跨站脚本，可能导致攻击者执行恶意脚本。
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
Pepro Dev. Group PeproDev Ultimate Invoice n/a ~ 2.2.6 -

II. Public POCs for CVE-2026-65510

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III. Intelligence Information for CVE-2026-65510

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Other References for CVE-2026-65510 (1)

Same Patch Batch · Pepro Dev. Group · 2026-07-23 · 4 CVEs total

CVE-2026-65516 7.2 HIGH WordPress PeproDev Ultimate Invoice plugin <= 2.2.6 - Server Side Request Forgery (SSRF) v
CVE-2026-27372 6.5 MEDIUM WordPress PeproDev Ultimate Invoice plugin <= 2.2.6 - Sensitive Data Exposure vulnerabilit
CVE-2026-65499 6.5 MEDIUM WordPress PeproDev Ultimate Invoice plugin <= 2.2.6 - Broken Access Control vulnerability

IV. Related Vulnerabilities

Same product: PeproDev Ultimate Invoice
Same vendor: Pepro Dev. Group
Same weakness: CWE-79

V. Comments for CVE-2026-65510

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