CVE-2024-5223: Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.1 - Authenticated (Author+) Stored Cross-Site Scripting
First published: Thu May 30 2024(Updated: )
The Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's file uploading feature in all versions up to, and including, 4.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PostX | <=4.1.1 | |
| WordPress |
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Reference Links
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7234d4b9-a575-428a-9d08-2dc62ba41c30?source=cve
- https://plugins.trac.wordpress.org/browser/ultimate-post/tags/4.0.4/addons/custom_font/Custom_Font.php#L13
- https://plugins.trac.wordpress.org/changeset/3093051/ultimate-post/trunk/addons/custom_font/Custom_Font.php
Frequently Asked Questions
What is the severity of CVE-2024-5223?
CVE-2024-5223 has a high severity due to the potential for stored cross-site scripting attacks.
How do I fix CVE-2024-5223?
To fix CVE-2024-5223, update the PostX plugin to version 4.1.2 or later, which addresses the vulnerability.
What versions of PostX are affected by CVE-2024-5223?
All versions of the PostX plugin up to and including 4.1.1 are affected by CVE-2024-5223.
What type of vulnerability is CVE-2024-5223?
CVE-2024-5223 is a stored cross-site scripting vulnerability linked to file uploading features.
Is CVE-2024-5223 specific to any WordPress versions?
CVE-2024-5223 is not specific to any WordPress version but affects the PostX plugin used in WordPress.
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