CVE-2026-12430

medium

Description

The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/fac4ae61-cfc6-4efc-9f57-58fa39e00f07?source=cve

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3576066%40blocksy-companion&new=3576066%40blocksy-companion&sfp_email=&sfph_mail=

https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/views/single-top.php#L232

https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/views/single-top.php#L206

https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/extension.php#L709

https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/views/single-top.php#L232

https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/views/single-top.php#L206

https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/extension.php#L709

Details

Source: Mitre, NVD

Published: 2026-06-19

Updated: 2026-06-22

Risk Information

CVSS v2

Base Score: 3.2

Vector: CVSS2#AV:N/AC:H/Au:M/C:P/I:P/A:N

Severity: Low

CVSS v3

Base Score: 4.4

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

Severity: Medium

EPSS

EPSS: 0.00208