CVE-2021-4458 — SQL Injection in Modern Events Calendar Lite

CWE-89 — SQL Injection4 documents4 sources
Severity
9.8CRITICALNVD
CNA5.9VulnCheck5.9
EPSS
0.1%
top 70.54%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Webnus Modern Events Calendar Lite
Timeline
PublishedJul 12

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 da…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages2 packages

Patches

Patch: plugins.trac.wordpress.org ↗

🔴Vulnerability Details

3
CVEList
Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection↗2025-07-12
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GHSA
GHSA-gcj4-979g-33cw: 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↗2025-07-12
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VulnCheck
webnus modern_events_calendar_lite Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')↗2021
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CVE-2021-4458 — SQL Injection | cvebase