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Medium severity · published Oct 30, 2025
CVE-2025-12475
Blocksy Companion <= 2.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting
6.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BC
Blocksy Companion · creativethemeshq
through 2.1.14 · source: vendor
Affected product
BC
Blocksy Companion
creativethemeshq
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-12475
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-12475
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3371878/blocksy-companion/trunk/framework/extensions/newsletter-subscribe/helpers.php
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/dd13eb67-3bd5-41c4-a47f-5f55656ea5b9?source=cve
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