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CVE-2026-96649— Frontend Post Submission Manager Lite <= 1.3.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via post_content Parameter (data-label DOM Sink)

Quick assessment

Affected
wpshuffle Frontend Post Submission Manager Lite – Guest Post and Frontend Submission Forms
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“Frontend Post Submission Manager Lite – Frontend Posting”（前端文章提交管理器轻量版）在所有 1.3.4 及更早版本中，由于输入净化不足和输出转义不当，存在通过 参数（data-label DOM 汇聚点）引发的存储型基于 DOM 的跨站脚本攻击（Stored DOM-Based XSS）漏洞。 该漏洞允许未经身份验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。 此漏洞的前提条件是：站点管理员已

CVSS 7.2 · High
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I. Basic Information for CVE-2026-96649

Vulnerability Information
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Vulnerability Title
Frontend Post Submission Manager Lite <= 1.3.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via post_content Parameter (data-label DOM Sink)
Source: CVE Program / CVE List V5
Vulnerability Description
The Frontend Post Submission Manager Lite – Frontend Posting WordPress Plugin plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via post_content Parameter (data-label DOM Sink) in all versions up to, and including, 1.3.4 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. This requires the site operator to have enabled guest post submission via the [fpsm] shortcode, which registers a publicly accessible AJAX handler gated only by a nonce emitted on every page containing the shortcode.
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
wpshuffle Frontend Post Submission Manager Lite – Guest Post and Frontend Submission Forms 0 ~ 1.3.4 -

II. Public POCs for CVE-2026-96649

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III. Intelligence Information for CVE-2026-96649

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Other References for CVE-2026-96649 (8)

IV. Related Vulnerabilities

Same vendor: wpshuffle
Same weakness: CWE-79

V. Comments for CVE-2026-96649

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