ClearSale Total <= 3.4.2 - Unauthenticated SQL Injection

7.5
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE CVE-2026-8705
CVSS 7.5 (High)
Publicly Published June 23, 2026
Last Updated June 24, 2026
Researcher Catalin Oancea (0x4D5A)

Description

The ClearSale Total plugin for WordPress is vulnerable to SQL Injection via the `pagseguro[metodo]` POST parameter of the `clearsale_total_push` AJAX action in all versions up to, and including, 3.4.2. The handler is registered for unauthenticated users (`wp_ajax_nopriv_clearsale_total_push`), and although a `wp_verify_nonce()` check exists, the failing branch's `die()` is commented out so execution continues regardless of nonce validity. On PHP < 8.0 the attacker-supplied `$metodo` value bypasses the `switch ($metodo) { case 4: ... }` guard via loose type juggling (the string `"4 AND SLEEP(5)"` compares equal to integer `4`), reaching an unquoted `UPDATE wp_cs_total_dadosextras SET metodo=$metodo, ...` query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires the target server to be running PHP < 8.0.

Learn more about SQL Injection vulnerabilities and how to prevent them.

References

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Vulnerability Details for ClearSale Total

Software Type Plugin
Software Slug clearsale-total (view on wordpress.org)
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 3.4.2

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