6.4
Medium
CVE-2025-9565 The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's…
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, 2.1.10 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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Blocksy Companion 2.1 | earliest → 2.1.10 | No fix stated |
Other CVEs of Blocksy Companion
The 10 CVEs of Blocksy Companion →
CVE-2026-107645
The Blocksy Companion plugin for WordPress is vulnerable to privilege escalation in versions up to, and including,…
9.1
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CVE-2026-18488
The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'tagName' Block Attribute…
6.4
Medium
CVE-2026-15158
The Blocksy Companion plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and…
9.8
Critical
CVE-2026-12430
The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all…
4.4
Medium