Vulnerability · Published May 30, 2024 · Assigned by Wordfence
CVE-2024-5223Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.1 - Authenticated (Author+) Stored Cross-Site Scripting
Medium 6.4
In plain English
A medium-severity cross-site scripting in Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX from wpxpo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wpxpo | Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX | 0 – through 4.1.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References
- 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