Vulnerability Description
The WP Composer – The Easiest Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pbwp_raw_shortcode' shortcode in all versions up to, and including, 1.0.5. This is due to the shortcode handler decoding Base64-encoded content and outputting it directly without any sanitization or escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The Base64 encoding allows the payload to bypass WordPress's KSES content filtering at save time, since the encoded string contains no harmful HTML characters.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/page-builder-wp/tags/1.0.5/inc/global
- https://plugins.trac.wordpress.org/browser/page-builder-wp/trunk/inc/global/wpc-
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3482357%40page-builde
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e328f1d-687d-424f-aab
FAQ
What is CVE-2026-2422?
CVE-2026-2422 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The WP Composer – The Easiest Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pbwp_raw_shortcode' shortcode in all versions up to, and including, 1.0.5. This is...
How severe is CVE-2026-2422?
CVE-2026-2422 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2422?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.