Medium severity · published Apr 8, 2025
CVE-2024-13820
Melhor Envio <= 2.15.11 - Unauthenticated Sensitive Information Exposure via Hardcoded Hash
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
The Melhor Envio plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.15.11 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Melhor Envio · melhorenvio
through 2.15.11 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-13820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-13820
github.com
https://github.com/melhorenvio/wp-melhorenvio-v2/blob/6e2f5bb01c536df9fc84534eb8a27ec99d9601af/Services/TestService.php
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php#L20
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php#L30
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3274912/
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/a8f093bc-5cd3-41a0-b86b-d00338334d2e?source=cve
More from Melhor Envio
7.6
CVE-2026-54804
WordPress Melhor Envio plugin <= 2.16.3 - Broken Authentication vulnerability