CVE-2026-4661
WP CTA <= 2.2.2 - Unauthenticated Time-Based Blind SQL Injection via 'fildname' Parameter
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.
INFO
Published Date :
July 11, 2026, 7:16 a.m.
Last Modified :
July 11, 2026, 7:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-4661
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the WP CTA plugin to version 2.2.3 or later.
- Apply input validation and sanitization to user input.
- Implement proper authorization checks for sensitive operations.
- Use prepared statements for all database queries.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-4661.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-4661 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-4661
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-4661 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-4661 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jul. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'blendmedia', 'product': 'WP CTA – Call Now Button, Sticky Button & Call to Action Builder', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '2.2.2'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-89 Added Reference https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/tags/1.7.4/inc/ClassActions.php#L17 Added Reference https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/tags/1.7.4/inc/ClassActions.php#L186 Added Reference https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/tags/1.7.4/inc/ClassActions.php#L193 Added Reference https://plugins.trac.wordpress.org/changeset?reponame=&old=3524743%40easy-sticky-sidebar&new=3524743%40easy-sticky-sidebar Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/7e963601-dc41-4218-9119-708c74e51bc2?source=cve