What’s Vulnerable › Vulnerabilities

CVE-2025-12475: Blocksy Companion <= 2.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-30 · updated 2026-10-08
• Weakness: CWE-79

Description

The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'blocksy_newsletter_subscribe' shortcode in all versions up to, and including, 2.1.14 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Affected products

• creativethemeshq Blocksy Companion: through 2.1.14

References

• https://plugins.trac.wordpress.org/changeset/3371878/blocksy-companion/trunk/framework/extensions/newsletter-subscribe/helpers.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/dd13eb67-3bd5-41c4-a47f-5f55656ea5b9?source=cve

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