WP CTA <= 2.2.2 — Unauthenticated Time-Based Blind SQL Injection via 'fildname' Parameter
CVE-2026-4661Published · Updated Action summary
Affected: ≤2.2.2Update to 2.3.0 or newer
All remediation steps- Severity
- High7.5
- CVSS
- 7.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:NIntegrity- None
A:NAvailability- None
- Weakness
- CWE-89 SQL Injection
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WP CTA – Call Now Button, Sticky Button & Call to Action Builder easy-sticky-sidebar
- Affected≤ 2.2.2
- Patched in2.3.0
Update to 2.3.0 or newer.
You are affected if you run ≤ 2.2.2. Version 2.3.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP CTA – Call Now Button, Sticky Button & Call to Action Builder.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.3.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WP CTA – Call Now Button, Sticky Button & Call to Action Builder to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to daroo.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in WP CTA – Call Now Button, Sticky Button & Call to Action Builder
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.9 | Authenticated (Administrator+) Server-Side Request Forgery 2.1.2 – 2.1.2Update to 2.1.3 | CVE-2026-6089 | |
| Medium5.3 | Missing Authorization ≤2.1.2Update to 2.1.3 | CVE-2026-22459 | |
| Medium5.3 | Missing Authorization to Unauthenticated Sticky Status Update ≤1.7.0Update to 1.7.1 | CVE-2025-8152 | |
| Medium4.3 | Cross-Site Request Forgery ≤1.7.0Update to 1.7.1 | CVE-2025-53270 | |
| Medium6.5 | Missing Authorization via Multiple AJAX Actions ≤1.5.8Update to 1.5.9 | CVE-2023-46644 |
- Medium4.9Authenticated (Administrator+) Server-Side Request Forgery
2.1.2 – 2.1.2Update to 2.1.3
- Medium5.3Missing Authorization
≤2.1.2Update to 2.1.3
- Medium5.3Missing Authorization to Unauthenticated Sticky Status Update
≤1.7.0Update to 1.7.1
- Medium4.3Cross-Site Request Forgery
≤1.7.0Update to 1.7.1
- Medium6.5Missing Authorization via Multiple AJAX Actions
≤1.5.8Update to 1.5.9
Same weakness (SQL Injection)
All SQL Injection| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity high, CVSS 7.5
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.