CVE-2026-4859

medium

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/705b1da0-df92-40c2-a608-ccad32a9c224?source=cve

https://plugins.trac.wordpress.org/browser/sp-blog-designer/trunk/includes/shortcode/wpsbd-post-carousel.php#L156

https://plugins.trac.wordpress.org/browser/sp-blog-designer/tags/1.0.0/includes/shortcode/wpsbd-post-carousel.php#L156

Details

Source: Mitre, NVD

Published: 2026-05-12

Updated: 2026-05-12

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00029