--- title: "CVE-2026-96649: Frontend Post Submission Manager Lite – Frontend Posting WordPress Plugin - Stored XSS" description: "Frontend Post Submission Manager Lite – Frontend Posting WordPress Plugin <= 1.3.4 contains a stored DOM-based cross-site scripting caused by insufficient input sanitization and output escaping in post_content parameter, letting unauthenticated attackers inject scripts executed on user page access, exploit requires guest post submission enabled via [fpsm] shortcode." url: https://panop.io/threat-heartbeat/CVE-2026-96649/ --- # CVE-2026-96649 Frontend Post Submission Manager Lite – Frontend Posting WordPress Plugin - Stored XSS Frontend Post Submission Manager Lite – Frontend Posting WordPress Plugin <= 1.3.4 contains a stored DOM-based cross-site scripting caused by insufficient input sanitization and output escaping in post\_content parameter, letting unauthenticated attackers inject scripts executed on user page access, exploit requires guest post submission enabled via \[fpsm\] shortcode. CVSS base score 7.2 /10 High CISA KEV Not listed Public exploit None known Authentication Not required EPSS 0.25% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-96649) ## Details Type Stored XSS Impact Stored XSS CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Published 30 September 2026 Updated 15 October 2026 Weakness [CWE-79](https://cwe.mitre.org/data/definitions/79.html) ## Vendor fix Update to a version later than 1.3.4 or apply patches that sanitize and escape inputs properly. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-96649](https://nvd.nist.gov/vuln/detail/CVE-2026-96649) - [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/cores/ajax-process-form.php#L161) - [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#L5) - [https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.5/](https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.5/) - [https://www.wordfence.com/threat-intel/vulnerabilities/id/0af8ff06-68e2-4a0c-9de4-d06a6a2e86c9?source=cve](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#L578](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-fileuploader.js#L583](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-frontend.js#L40](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/classes/class-fpsml-library.php#L112](https://plugins.trac.wordpress.org/browser/frontend-post-submission-manager-lite/tags/1.3.4/includes/classes/class-fpsml-library.php#L112) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)