CVE-2021-4458: medium-severity vulnerability in webnus/ Modern Events Calendar Lite
Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
35Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck.
ssvc Attendcvss 5.9epss 0.4%
from disclosure to weapon
Published on NVDJul 12
VulnCheck+241d
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
webnus/ · Modern Events Calendar LiteRelated CVEs — webnus/ Modern Events Calendar Lite
In the same product, most dangerous first.
CVE-2024-5441HIGHModern Events Calendar <= 7.11.0 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 1.1%CVE-2024-6522HIGHModern Events Calendar <= 7.12.1 - Authenticated (Subscriber+) Server Side Request ForgeryEPSS 0.4%CVE-2023-4021MEDIUMModern Events Calendar lite < 7.1.0 - Authenticated (Admin+) Stored Cross-Site ScriptingEPSS 0.4%CVE-2025-5733MEDIUMModern Events Calendar <= 7.21.9 - Information ExposureEPSS 0.4%