CVE-2021-24149

Name: CVE-2021-24149
Creator: NVD / NIST
Published: 2021-03-18T15:15:15.697+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.50%

Last modified Jun 17, 2026

CVE-2021-24149 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Unvalidated input in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.6, did not sanitise the mec[post_id] POST parameter in the mec_fes_form AJAX action when logged in as an author+, leading to an authenticated SQL Injection issue.. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

Unvalidated input in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.6, did not sanitise the mec[post_id] POST parameter in the mec_fes_form AJAX action when logged in as an author+, leading to an authenticated SQL Injection issue.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.50%

71.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Webnus	Modern Events Calendar Lite	< 5.16.6

References

https://wpscan.com/vulnerability/26819680-22a8-4348-b63d-dc52c0d50ed0Exploit, Third Party Advisory
https://wpscan.com/vulnerability/26819680-22a8-4348-b63d-dc52c0d50ed0Exploit, Third Party Advisory

Timeline

Published: Mar 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24149?

How severe is CVE-2021-24149?

CVE-2021-24149 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24149?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24149?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST