CVE-2024-13820 json
Melhor Envio <= 2.15.11 - Unauthenticated Sensitive Information Exposure via Hardcoded Hash
published 2025-04-08 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-54391
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- melhorenvio Melhor Envio
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/a8f093bc-5cd3-41a0-b86b-d00338334d2e?source=cve
- github.com /melhorenvio/wp-melhorenvio-v2/blob/6e2f5bb01c536df9fc84534eb8a27ec99d9601af/Services/TestService.php
- plugins.trac.wordpress.org /browser/melhor-envio-cotacao/trunk/Services/TestService.php#L20
- plugins.trac.wordpress.org /browser/melhor-envio-cotacao/trunk/Services/TestService.php#L30
- plugins.trac.wordpress.org /changeset/3274912/
Sources
- CVE List CVE-2024-13820
- NVD CVE-2024-13820
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.