CVE-2021-4458
Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
The Modern Events Calendar Lite plugin for WordPress is vulnerable to SQL Injection via the 'id' parameter of the 'wp_ajax_mec_load_single_page' AJAX action in all versions up to, and including, 6.3.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is only exploitable on sites with addslashes disabled.
| CWE | CWE-89 |
| Vendor | webnus/ |
| Product | modern events calendar lite |
| Published | Jul 12, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
webnus/ / Modern Events Calendar Lite
0 ≤ 6.3.0