Vulnerability Description
The SP Blog Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'design' attribute of the `wpsbd_post_carousel` shortcode in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/sp-blog-designer/tags/1.0.0/includes/
- https://plugins.trac.wordpress.org/browser/sp-blog-designer/trunk/includes/short
- https://www.wordfence.com/threat-intel/vulnerabilities/id/705b1da0-df92-40c2-a60
FAQ
What is CVE-2026-4859?
CVE-2026-4859 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The SP Blog Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'design' attribute of the `wpsbd_post_carousel` shortcode in all versions up to, and including, 1.0.0 due...
How severe is CVE-2026-4859?
CVE-2026-4859 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-2026-4859?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.