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CVE-2026-96649

HIGH 7.2 CVSS 3.1
Published
September 30, 2026
Last modified
September 30, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

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.

Affected WordPress components

  • Frontend Post Submission Manager Lite – Frontend Posting WordPress Plugin Plugin · frontend-post-submission-manager-lite
    Confirmed match Active
    Up to and including 1.3.4
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • wpshuffle Frontend Post Submission Manager Lite – Guest Post and Frontend Submission Forms — Up to and including 1.3.4

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/assets/js/fpsml-fileuploader.js#L578
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/assets/js/fpsml-fileuploader.js#L583
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/assets/js/fpsml-frontend.js#L40
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/classes/class-fpsml-library.php#L112
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/cores/ajax-process-form.php#L161
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/cores/ajax-process-form.php#L5
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.5/
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/0af8ff06-68e2-4a0c-9de4-d06a6a2e86c9?source=cve
  • nvd.nist.gov Official NVD record