CVE-2024-5223 Cross-site scripting in Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX
Authenticated attackers with Author access can inject arbitrary scripts via file uploads, leading to script execution on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-5223?
CVE-2024-5223 is a medium-severity cross-site scripting vulnerability in wpxpo Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX, published on 30 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-79
Which versions are affected by CVE-2024-5223?
How do I fix CVE-2024-5223?
No fix has been published for CVE-2024-5223 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-5223 being exploited?
There is no known exploitation of CVE-2024-5223 in the wild and no public exploit code.