CVE-2025-12475

MEDIUM

Blocksy Companion <= 2.1.14 - Authenticated Stored Cross-Site Scripting via Newsletter Subscribe Shortcode

Title source: llm

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.

References (2)

Core 2

Core References

Product

https://plugins.trac.wordpress.org/changeset/3371878/blocksy-companion/trunk/framework/extensions/newsletter-subscribe/helpers.php

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/dd13eb67-3bd5-41c4-a47f-5f55656ea5b9?source=cve

Scores

CVSS v3 6.4

EPSS 0.0018

EPSS Percentile 8.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

creativethemeshq/Blocksy Companion < 2.1.14

Published Oct 30, 2025

Tracked Since Feb 18, 2026