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CVE-2026-11589— WP Support Plus Responsive Ticket System <= 9.1.2 - Unauthenticated Stored XSS via File Upload

Quick assessment

Affected
Unknown WP Support Plus Responsive Ticket System
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.

wpsupportplus wp support plus responsive ticket system是wpsupportplus个人开发者的一套WordPress工单系统插件。 Pradeep Makone WP Support Plus Responsive Ticket System 9.1.2及之前版本存在跨站脚本漏洞，该漏洞源于文件上传验证不当，可能导致未经身份验证的用户上传包含恶意JavaScript的文件（如HTML或SVG），导致存储型跨站脚本攻击。

AI Predicted 8.8 Difficulty: Easy EPSS 0.51% · P41

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown WP Support Plus Responsive Ticket System ≤ 9.1.2 affected
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I. Basic Information for CVE-2026-11589

Vulnerability Information
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Vulnerability Title
WP Support Plus Responsive Ticket System <= 9.1.2 - Unauthenticated Stored XSS via File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
The WP Support Plus Responsive Ticket System WordPress plugin through 9.1.2 does not properly validate uploaded files, allowing unauthenticated users to upload files containing malicious JavaScript (such as HTML or SVG) to a publicly accessible location, leading to Stored Cross-Site Scripting attacks against site users and administrators.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Pradeep Makone WP Support Plus Responsive Ticket System 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wpsupportplus wp support plus responsive ticket system是wpsupportplus个人开发者的一套WordPress工单系统插件。 Pradeep Makone WP Support Plus Responsive Ticket System 9.1.2及之前版本存在跨站脚本漏洞，该漏洞源于文件上传验证不当，可能导致未经身份验证的用户上传包含恶意JavaScript的文件（如HTML或SVG），导致存储型跨站脚本攻击。
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
Unknown WP Support Plus Responsive Ticket System 0 ~ 9.1.2 -

II. Public POCs for CVE-2026-11589

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III. Intelligence Information for CVE-2026-11589

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News Coverage for CVE-2026-11589 (1)

Same Patch Batch · Unknown · 2026-06-30 · 4 CVEs total

CVE-2026-11581 Kali Forms < 2.4.13 - Contributor+ Stored XSS via Form Field Caption
CVE-2026-11590 WP Support Plus Responsive Ticket System <= 9.1.2 - Unauthenticated SQL Injection via filt
CVE-2026-9576 Fluent Booking < 2.1.2 - Calendar Manager+ Sensitive Information Disclosure via Attendee E

IV. Related Vulnerabilities

Same product: WP Support Plus Responsive Ticket System
Same vendor: Unknown

V. Comments for CVE-2026-11589

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