CVE-2026-4661
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-89
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/tags/1.7.4/inc/ClassActions.php#L17
- https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/tags/1.7.4/inc/ClassActions.php#L186
- https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/tags/1.7.4/inc/ClassActions.php#L193
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3524743%40easy-sticky-sidebar&new=3524743%40easy-sticky-sidebar
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e963601-dc41-4218-9119-708c74e51bc2?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.