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CVE-2026-119162— User Submitted Posts <= 20260916 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'user-submitted-content' Parameter via Block-Comment Shortcode Splitting

Quick assessment

Affected
specialk User Submitted Posts – Enable Users to Submit Posts from the Front End
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 插件"User Submitted Posts – Enable Users to Submit Posts from the Front End"在所有版本（直至并包括 20260916 版本）中，由于输入清洗和输出转义不足，存在存储型 DOM 跨站脚本（Stored DOM-Based XSS）漏洞，该漏洞通过"user-submitted-content"参数触发。此漏洞允许未认证的攻击者在页面中注入任意 Web 脚本，当用户访问被注入的页面时，这些脚本将被执行。在默认安装配置下，用户提交

CVSS 7.2 · High

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2026-119162

Vulnerability Information
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Vulnerability Title
User Submitted Posts <= 20260916 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'user-submitted-content' Parameter via Block-Comment Shortcode Splitting
Source: CVE Program / CVE List V5
Vulnerability Description
The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'user-submitted-content' parameter in all versions up to, and including, 20260916 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. On a default installation the submitted post is held as Pending and requires admin approval before the payload is reachable by other visitors; however, if the plugin's "publish immediately" option is enabled, no approval step exists and the stored payload becomes live without any moderator interaction.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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
specialk User Submitted Posts – Enable Users to Submit Posts from the Front End 0 ~ 20260916 -

II. Public POCs for CVE-2026-119162

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III. Intelligence Information for CVE-2026-119162

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Other References for CVE-2026-119162 (6)

IV. Related Vulnerabilities

Same product: User Submitted Posts – Enable Users to Submit Posts from the Front End
Same vendor: specialk
Same weakness: CWE-79