CVE-2026-4661 WP CTA <= 2.2.2 - Unauthenticated Time-Based Blind SQL Injection via 'fildname' Parameter
Unauthenticated attackers can extract sensitive database information, including admin hashes, via time-based blind SQL injection in the WP CTA plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4661?
CVE-2026-4661 is a high-severity SQL injection vulnerability in blendmedia WP CTA – Call Now Button, Sticky Button & Call to Action Builder, published on 11 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WP CTA – Sticky CTA Builder, Generate Leads, Promote Sales plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'fildname' parameter in all versions up to, and including, 2.2.2. This is due to insufficient escaping of user-supplied column names in the ajaxCheck() method and lack of preparation in the $wpdb->update() call. The vulnerability is compounded by the complete absence of authorization checks and the endpoint being registered for unauthenticated users via wp_ajax_nopriv_. This makes it possible for unauthenticated attackers to inject arbitrary SQL queries and extract sensitive information from the database via time-based blind SQL injection techniques, including administrator password hashes.
Weakness: CWE-89
Which versions are affected by CVE-2026-4661?
How do I fix CVE-2026-4661?
No fix has been published for CVE-2026-4661 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-2026-4661 being exploited?
There is no known exploitation of CVE-2026-4661 in the wild and no public exploit code.
Sources
Also known as GHSA-w7rc-p2m9-r4pm.