Vulnerability · Published Aug 20, 2026 · Assigned by Patchstack
CVE-2026-66594WordPress WordPress Persistent Login plugin <= 3.1.0 - SQL Injection vulnerability
High 8.5
In plain English
A high-severity SQL injection in WordPress Persistent Login from lukeseager. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)8.5High
Exploit odds (30 days)0.4%top 70.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Subscriber SQL Injection in WordPress Persistent Login <= 3.1.0 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| lukeseager | WordPress Persistent Login | n/a – through 3.1.0 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L