PT-2025-44370 · WordPress · Blocksy Companion

Rafshanzani Suhada · Published 2025-10-30 · Updated 2025-10-30 · CVE-2025-12475

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Blocksy Companion plugin for WordPress versions up to and including 2.1.14

Description The Blocksy Companion plugin for WordPress is susceptible to Stored Cross-Site Scripting through the 'blocksy newsletter subscribe' shortcode. This is due to inadequate input sanitization and output escaping of user-supplied attributes. Authenticated attackers with contributor-level access or higher can inject arbitrary web scripts into pages. These scripts will execute when a user accesses the affected page.

Recommendations Update the Blocksy Companion plugin to a version later than 2.1.14.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-12475

Affected Products

Blocksy Companion

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-12475 · Security Note
• https://plugins.trac.wordpress.org/changeset/3371878/blocksy-companion/trunk/framework/extensions/newsletter-subscribe/helpers.php · Note
• https://twitter.com/VulmonFeeds/status/1983768541120627103 · Twitter Post
• https://t.me/CVEtracker/36147 · Telegram Post
• https://t.me/cveNotify/140926 · Telegram Post
• https://twitter.com/CVEnew/status/1983756722142396834 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/dd13eb67-3bd5-41c4-a47f-5f55656ea5b9?source=cve · Note