What is CVE-2026-96649?

CVE-2026-96649 is a high-severity vulnerability in Wpshuffle Frontend Post Submission Manager Lite – Guest And Forms, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-30.

How severe is CVE-2026-96649?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Wpshuffle Frontend Post Submission Manager Lite – Guest And Forms

CVE-2026-96649

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-09-30.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Wpshuffle Frontend Post Submission Manager Lite – Guest And Forms

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-96649?: CVE-2026-96649 is a high-severity vulnerability in Wpshuffle Frontend Post Submission Manager Lite – Guest And Forms, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-30.
How severe is CVE-2026-96649?: High severity. CVSS v3 base score is 7.2 out of 10.