CVE-2026-17576 InfiniteWP Client <= 1.13.9 - Authenticated (Admin+) SQL Injection via 'iwp_get_comments_*' Array Key
Authenticated administrators can exploit SQL injection in InfiniteWP Client to extract sensitive database information via crafted JSON requests.
- 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-2026-17576?
CVE-2026-17576 is a medium-severity SQL injection vulnerability in revmakx InfiniteWP Client, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The InfiniteWP Client plugin for WordPress is vulnerable to SQL Injection via the get_comments action in versions up to, and including, 1.13.9. This is due to insufficient escaping on the array-key names supplied in the JSON request body before use in a SQL statement: IWP_MMB_Comment::get_comments() calls extract() on $args (which silently skips keys that are not valid PHP variable names) but a second foreach($args as $checkbox => $checkbox_val) processes every key, strips the 'iwp_get_comments_' prefix with str_replace(), wraps the remainder in single quotes, and imploded it into an IN(...) clause that is executed via $wpdb->get_results() with no prepare(). Because the request body is read from php://input and JSON-decoded, wp_magic_quotes() never touches the data, so quote characters in keys pass through unaltered. This makes it possible for authenticated attackers, with administrator-level access and above (an administrator can register their own public key via add_site using the plugin's WP-admin-generated activation_key and then issue signed get_comments requests), to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Weakness: CWE-89
Which versions are affected by CVE-2026-17576?
How do I fix CVE-2026-17576?
No fix has been published for CVE-2026-17576 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-17576 being exploited?
There is no known exploitation of CVE-2026-17576 in the wild and no public exploit code.
Sources
Also known as GHSA-xcfp-7r4f-6367.