Melhor Envio <= 2.15.11 - Unauthenticated Sensitive Information Exposure via Hardcoded Hash

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Summary

CVECVE-2024-13820
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-04-08 05:15:37 UTC
Updated2026-04-08 19:20:27 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.002910000 probability, percentile 0.524900000 (date 2026-04-13)

Problem Types: CWE-200 | CWE-200 CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Melhorenvio Melhor Envio affected 2.15.11 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/a8f093bc-5cd3-41a0-b86b-d0033... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3274912 [email protected] plugins.trac.wordpress.org
github.com/melhorenvio/wp-melhorenvio-v2/blob/6e2f5bb01c536df9fc84534eb8... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Luciano Hanna (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-04-07T15:53:14.000ZDisclosed
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