What is CVE-2026-9711?

CVE-2026-9711 is a critical-severity vulnerability in Eventon (Pro) - Wordpress Virtual Event Calendar Plugin, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-06-30.

How severe is CVE-2026-9711?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Eventon (Pro) - Wordpress Virtual Event Calendar Plugin

CVE-2026-9711

The EventON - WordPress Virtual Event Calendar Plugin plugin for WordPress (full) is vulnerable to SQL Injection via the WordPress 'search' parameter in versions up to, and including, 5.0.11 due to insufficient escaping on the user supplied parameter and lack of preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database, granted the "Enable additional search queries" setting is enabled and at least one published event exists.

Vulnerability class: SQL Injection

EPSS: 0.003 (22.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Eventon (Pro) - Wordpress Virtual Event Calendar Plugin — versions 0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

Frequently asked questions

What is CVE-2026-9711?: CVE-2026-9711 is a critical-severity vulnerability in Eventon (Pro) - Wordpress Virtual Event Calendar Plugin, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-06-30.
How severe is CVE-2026-9711?: Critical severity. CVSS v3 base score is 9.8 out of 10.