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5.9
CVSS
Medium

CVE-2021-4458

PUBLISHED

Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection

Exploited in the wild Remote No user interaction
Vendor
webnus/
Product
Modern Events Calendar Lite
Published
Jul 12, 2025
EPSS
0.2% · 48% pctl

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Description

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.

wordpress

Weaknesses (CWE)

  • CWE-89

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSS scores

CVSS v3.1 5.9 Medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation status

Exploited in the wild

Recorded 2026-06-06 00:00:00 UTC · The Shadowserver (via CIRCL)

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source Added
The Shadowserver (via CIRCL) First 2026-06-06 00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel