What is CVE-2026-4087?

CVE-2026-4087 is a medium-severity vulnerability in Samperrow Pre* Party Resource Hints, classified under SQL Injection. CVSS score: 6.5/10. Published 2026-03-21.

How severe is CVE-2026-4087?

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

SQL Injection in Samperrow Pre* Party Resource Hints

CVE-2026-4087

The Pre* Party Resource Hints plugin for WordPress is vulnerable to SQL Injection via the 'hint_ids' parameter of the pprh_update_hints AJAX action in all versions up to, and including, 1.8.20. This is 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.

Vulnerability class: SQL Injection

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

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

Samperrow Pre* Party Resource Hints — versions 0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

Frequently asked questions

What is CVE-2026-4087?: CVE-2026-4087 is a medium-severity vulnerability in Samperrow Pre* Party Resource Hints, classified under SQL Injection. CVSS score: 6.5/10. Published 2026-03-21.
How severe is CVE-2026-4087?: Medium severity. CVSS v3 base score is 6.5 out of 10.