CVE-2026-2583
Received Received - Intake
Stored XSS in Blocksy WordPress Theme Allows Script Injection

Publication date: 2026-03-02

Last updated on: 2026-03-02

Assigner: Wordfence

Description
The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `blocksy_meta` metadata fields in all versions up to, and including, 2.1.30 due to insufficient input sanitization and output escaping. 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.
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Meta Information
Published
2026-03-02
Last Modified
2026-03-02
Generated
2026-06-16
AI Q&A
2026-03-03
EPSS Evaluated
2026-06-15
NVD
CVE-2026-2583
EUVD
EUVD-2026-9267
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
blocksy theme to 2.1.30 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

The Blocksy theme for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its `blocksy_meta` metadata fields. This vulnerability exists in all versions up to and including 2.1.30 because the theme does not properly sanitize input or escape output. As a result, authenticated users with Contributor-level access or higher can inject malicious web scripts into pages. These scripts will execute whenever any user accesses the infected page.

Impact Analysis

This vulnerability allows attackers with Contributor-level access or above to inject malicious scripts into web pages. When other users visit these pages, the injected scripts execute in their browsers, potentially leading to theft of sensitive information, session hijacking, or unauthorized actions performed on behalf of the user. This can compromise the security and integrity of the affected WordPress site and its users.

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