Threat intelligence

Blocksy Companion <= 2.1.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via blocksy_newsletter_subscribe Shortcode

CVE-2025-9565 · blocksy-companion

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Blocksy Companion at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Blocksy Companion <= 2.1.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via blocksy_newsletter_subscribe Shortcode
Affected software: blocksy-companion(Plugin)
Affected versions: ≤ 2.1.10
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2025-9565
Published: 16 September 2025
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory c28e740e-9337-41b5-a8e7-ca68e41eaed4). Methodology and redistribution notes

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