Vulnerability · Published Jun 17, 2026 · Assigned by Patchstack
CVE-2026-54804WordPress Melhor Envio plugin <= 2.16.3 - Broken Authentication vulnerability
High 7.6
In plain English
A high-severity authentication bypass in Melhor Envio from melhorenvio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 3.1)7.6High
Exploit odds (30 days)0.3%top 80.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Subscriber Broken Authentication in Melhor Envio <= 2.16.3 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| melhorenvio | Melhor Envio | n/a – through 2.16.3 |
Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H