WP CTA <= 2.2.2 - Unauthenticated Time-Based Blind SQL Injection via 'fildname' Parameter
| CVE | CVE-2026-4661 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | July 10, 2026 |
| Last Updated | July 11, 2026 |
| Researcher |
daroo
|
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.
Learn more about SQL Injection vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for WP CTA – Call Now Button, Sticky Button & Call to Action Builder
| Software Type | Plugin |
|---|---|
| Software Slug | easy-sticky-sidebar (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 2.3.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in WP CTA – Call Now Button, Sticky Button & Call to Action Builder
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | WP CTA <= 2.1.2 - Authenticated (Administrator+) Server-Side Request Forgery | CVE-2026-6089 | Nguyen Quang Truong, Chu Thao Mai | July 28, 2026 | |
| 2 | WP CTA – Sticky CTA Builder, Generate Leads, Promote Sales <= 2.1.2 - Missing Authorization | CVE-2026-22459 | Nabil Irawan | March 3, 2026 | |
| 3 | WP CTA – Call To Action Plugin, Sticky CTA, Sticky Buttons <= 1.7.0 - Missing Authorization to Unauthenticated Sticky Status Update | CVE-2025-8152 | Sushi Com Abacate | August 1, 2025 | |
| 4 | WordPress CTA <= 1.7.0 - Cross-Site Request Forgery | CVE-2025-53270 | Nguyen Xuan Chien | June 27, 2025 | |
| 5 | WordPress CTA <= 1.5.8 - Missing Authorization via Multiple AJAX Actions | CVE-2023-46644 | Abdi Pranata | October 25, 2023 | |
| 6 | Appsero <= 1.2.1 - Missing Authorization | December 16, 2022 | |||
| 7 | Appsero <= 1.2.0 - Cross-Site Request Forgery | CVE-2022-47150 | István Márton | December 14, 2022 |
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