Home

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.

PUBLISHED Reserved 2025-10-29 | Published 2025-10-30 | Updated 2025-10-30 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-10-06:Vendor Notified
2025-10-06:Disclosed

Credits

Rafshanzani Suhada finder

References

www.wordfence.com/...-3bd5-41c4-a47f-5f55656ea5b9?source=cve

plugins.trac.wordpress.org/...wsletter-subscribe/helpers.php

cve.org (CVE-2025-12475)

nvd.nist.gov (CVE-2025-12475)

Download JSON