# 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.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jul 2026
- **Updated:** 13 Jul 2026
- **Also known as:** GHSA-w7rc-p2m9-r4pm

## 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 (Improper Neutralization of Special Elements used in an SQL Command)

## 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.

## Is CVE-2026-4661 being exploited?

There is no known exploitation of CVE-2026-4661 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-4661 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-4661 in the wild and no public exploit code.

Affected product: blendmedia WP CTA – Call Now Button, Sticky Button & Call to Action Builder. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-4661/ (Markdown: https://insights.sbomify.com/CVE-2026-4661/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4661
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4661
- OSV: https://osv.dev/vulnerability/CVE-2026-4661

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-4661/
Summaries are generated and may contain mistakes; the official description above is the record.