The Blocksy theme for WordPress is vulnerable to Reflected Cross-Site Scripting via the custom_url parameter in all versions up to, and including, 2.0.50 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
CVE-2024-5439 is a medium severity with CVSS 6.4 Stored Cross-Site Scripting issue affecting the Theme Blocksy. It affects Versions up to 2.0.50 and is fixed in 2.0.51.
CVE-2024-5439 is tracked for the Theme Blocksy as medium severity with CVSS 6.4. The affected range is Versions up to 2.0.50. Update Blocksy to 2.0.51 or newer where that version is compatible with the site.
| Software Type | Theme |
|---|---|
| Software Slug |
blocksy
View on wordpress.org
|
| CVE | CVE-2024-5439 |
| Patched Versions |
2.0.51
|
| Affected Versions |
Versions up to 2.0.50
|
These internal links group the same WordPress theme by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Blocksy <= 2.1.30 - Authenticated (Contributor+) Stored Cross-Site Scripting via `blocksy_meta` Fields
Blocksy <= 2.0.77 - Authenticated (Contributor+) Stored Cross-Site Scripting
Blocksy <= 2.0.46 - Authenticated (Contributor+) Stored Cross-Site Scripting
Blocksy <= 2.0.42 - Authenticated (Contributor+) Stored Cross-Site Scripting
Blocksy <= 2.0.39 - Authenticated (Contributor+) Stored Cross-Site Scripting via About Me block
Blocksy <= 2.0.33 - Authenticated (Contributor+) Stored Cross-Site Scripting
Blocksy <= 2.0.26 - Authenticated (Contributor+) Stored Cross-Site Scripting
Blocksy <= 2.1.6 - Authenticated (Shop manager+) Stored Cross-Site Scripting
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