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Fencer Vulns
critical 9.8

CVE-2021-24946 in the critical feed json

Modern Events Calendar < 6.1.5 - Unauthenticated Blind SQL Injection

published 2021-12-13 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11858

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
72.8%
EPSS 72.8% chance of exploitation in 30 days, percentile 99.4%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

Summary

The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the time parameter before using it in a SQL statement in the mec_load_single_page AJAX action, available to unauthenticated users, leading to an unauthenticated SQL injection issue

Patch / fix

  • webnus modern_events_calendar_lite 6.1.5

Timeline

  1. First public exploit (Metasploit auxiliary/scanner/http/wp_modern_events_calendar_sqli)
  2. Published

Exploit prediction

72.80% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit auxiliary/scanner/http/wp_modern_events_calendar_sqli WordPress Modern Events Calendar SQLi Scanner metasploit auxiliary, normal rank, 2021-12-13
  • EDB-50687 WordPress Plugin Modern Events Calendar V 6.1 - SQL Injection (Unauthenticated) webapps, 2022-01-27
  • Nuclei template WordPress Modern Events Calendar <6.1.5 - Blind SQL Injection nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/09871847-1d6a-4dfe-8a8c-f2f53ff87445 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/165742/WordPress-Modern-Events-Calendar-6.1-SQL-Injection.html referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-24946 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Unknown Modern Events Calendar Lite

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.