CVE-2026-96649Frontend Post Submission Manager Lite <= 1.3.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via post_content Parameter (data-label DOM Sink)
Updated under an hour ago ()
Does this affect you?
It affects wpshuffle Frontend Post Submission Manager Lite – Guest Post and Frontend Submission Forms. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.25%, higher than 15% of scored CVEs.
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.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.25% (percentile 15)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
wpshuffle Frontend Post Submission Manager Lite – Guest Post and Frontend Submission Forms wpshuffle:frontend_post_submission_manager_lite_guest_post_and_frontend_submission_forms (from the name) | through 1.3.4 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0af8ff06-68e2-4a0c-9de4-d06a6a2e86c9?source=cve
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/assets/js/fpsml-fileuploader.js#L583
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/assets/js/fpsml-fileuploader.js#L578
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/assets/js/fpsml-frontend.js#L40
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/cores/ajax-process-form.php#L5
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/cores/ajax-process-form.php#L161
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/classes/class-fpsml-library.php#L112
- https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.5/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.