CVE-2026-65444
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Creative Themes Blocksy Companion blocksy-companion allows Stored XSS. This issue affects Blocksy Companion: from n/a through 2.1.60.
Risk Assessment
Stored XSS can allow an attacker to execute arbitrary script in an administrator's or user's browser, potentially leading to session hijacking or actions performed on behalf of the victim.
Recommendation
Upgrade the Blocksy Companion plugin to a version later than 2.1.60. Until then, restrict content input by low-privileged users and monitor for unusual scripts in content.
Other vulnerabilities in Blocksy Companion
See all- CVE-2026-97247Medium
Unauthenticated Broken Access Control vulnerability in Blocksy Companion versions up to 2.1.55.
- CVE-2026-107645Critical
The Blocksy Companion plugin up to version 2.1.58 is vulnerable to privilege escalation. The implement_user_registration() AJAX handler disables Dokan's vendor-registration nonce check and trusts an attacker-supplied $_POST['role'] value, allowing unauthenticated attackers to obtain a Dokan 'seller' account and be auto-authenticated, even when vendor signup is disabled.
- CVE-2026-15158Critical
The Blocksy Companion plugin for WordPress is vulnerable to arbitrary file upload in versions up to 2.1.46. The flaw lies in the save_attachments function, which improperly validates file extensions, allowing double-extension files like shell.woff2.php to bypass MIME checks. This can lead to remote code execution, but exploitation requires the premium plugin with specific extensions active.
- CVE-2026-18488Medium
The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tagName' block attribute in all versions up to and including 2.1.51. Authenticated attackers with author-level access or higher can inject arbitrary web scripts that execute whenever a user accesses an injected page.
- CVE-2025-12475Medium
The Blocksy Companion plugin for WordPress (up to 2.1.14) is vulnerable to Stored XSS via the 'blocksy_newsletter_subscribe' shortcode due to insufficient input sanitization and output escaping.
Original NVD description (English source)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Creative Themes Blocksy Companion blocksy-companion allows Stored XSS.This issue affects Blocksy Companion: from n/a through 2.1.60.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS