Melhor Envio <= 2.15.11 - Unauthenticated Sensitive Information Exposure via Hardcoded Hash
Priority LOW 30CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00418 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| melhorenvio | Melhor Envio | up to 2.15.11 | — | No fix listed | CNA |
- Melhor Envio Vendormelhorenvio Affected up to 2.15.11 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-13820
- 2026-10-03 Alias added: GHSA-fp5g-w23g-5r66
References
Other 5
- 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
- https://plugins.trac.wordpress.org/changeset/3274912/
More melhorenvio vulnerabilities
- TI-2026-39607 WordPress Melhor Envio plugin <= 2.16.3 - Broken Authentication vulnerability CVSS 3.1HIGH 7.6
Sources
- CVE-2024-13820 · CVE Program
- CVE-2024-13820 · NVD
- FIRST EPSS
- GHSA-fp5g-w23g-5r66 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences