CVE-2024-13820Melhor Envio <= 2.15.11 - Unauthenticated Sensitive Information Exposure via Hardcoded Hash
- 5.3MediumCVSS base score
- 0.42%Exploitation in 30 daysEPSS · top 63% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Wordfence
- 2 months later
· 2 months later
Published
- 12 months later
· 12 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Deferred | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.42% · top 63% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
- affected ≤ 2.15.11
References
References5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a8f093bc-5cd3-41a0-b86b-d00338334d2e?source=cve (opens in a new tab)
- https://github.com/melhorenvio/wp-melhorenvio-v2/blob/6e2f5bb01c536df9fc84534eb8a27ec99d9601af/Services/TestService.php (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php#L20 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/melhor-envio-cotacao/trunk/Services/TestService.php#L30 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset/3274912/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-54391 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-13820)Record last updated .