CVE-2024-13820: Melhor Envio <= 2.15.9 - Unauthenticated Sensitive Information Exposure via Hardcoded Hash
First published: Tue Apr 08 2025(Updated: )
The Melhor Envio plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.15.9 via the 'run' function, which uses a hardcoded hash. This makes it possible for unauthenticated attackers to extract sensitive data including environment information, plugin tokens, shipping configurations, and limited vendor information.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Melhor Envio | <=2.15.9 |
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Reference Links
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a8f093bc-5cd3-41a0-b86b-d00338334d2e?source=cve
- https://github.com/melhorenvio/wp-melhorenvio-v2/blob/6e2f5bb01c536df9fc84534eb8a27ec99d9601af/Services/TestService.php
- https://plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php#L20
- https://plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php#L30
Frequently Asked Questions
What is the severity of CVE-2024-13820?
CVE-2024-13820 is categorized as a high severity vulnerability due to its potential for sensitive information exposure.
How does CVE-2024-13820 affect the Melhor Envio plugin?
CVE-2024-13820 allows unauthenticated attackers to exploit a hardcoded hash in the 'run' function leading to exposure of sensitive data.
How do I fix CVE-2024-13820 in my WordPress site?
To mitigate CVE-2024-13820, update the Melhor Envio plugin to version 2.15.10 or higher.
What versions of Melhor Envio are impacted by CVE-2024-13820?
CVE-2024-13820 affects all versions of the Melhor Envio plugin up to and including version 2.15.9.
Is authentication required to exploit CVE-2024-13820?
No, CVE-2024-13820 can be exploited by unauthenticated attackers.
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