What is CVE-2026-18752?

CVE-2026-18752 is a medium-severity vulnerability in Lukeseager Persistent Login, classified under SQL Injection. CVSS score: 6.5/10. Published 2026-09-01.

How severe is CVE-2026-18752?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SQL Injection in Lukeseager Persistent Login

CVE-2026-18752

The Persistent Login plugin for WordPress is vulnerable to generic SQL Injection via 'wppl_device_id' Cookie in all versions up to, and including, 3.1.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This vulnerability is only exploitable when the plugin's Login History feature is enabled.

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Lukeseager Persistent Login

Weakness classification (CWE)

CWE-89 — SQL Injection

References

Frequently asked questions

What is CVE-2026-18752?: CVE-2026-18752 is a medium-severity vulnerability in Lukeseager Persistent Login, classified under SQL Injection. CVSS score: 6.5/10. Published 2026-09-01.
How severe is CVE-2026-18752?: Medium severity. CVSS v3 base score is 6.5 out of 10.