CVE-2021-24946
CriticalExploitedPublic exploitThe 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
Published Dec 13, 2021 · Updated Nov 21, 2024 · Also known as 3bfc18fa-905c-408f-bbb4-ce207c322298
Key Facts
Patch immediately- CVE-2021-24946 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Modern Events Calendar Lite (Webnus).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Nov 15, 2021. Public exploit code is available.
- EPSS estimates a 73% probability of exploitation in the next 30 days.
- Fixed versions are available, including Modern Events Calendar Lite 6.1.5.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
73%
Higher than 99.4% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-24946 brief as a PDF
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Description
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
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Nov 15, 2021 | n/a | Not reported |
| CIRCL KEV | Sep 17, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Modern Events Calendar LiteWebnus | >= 6.1.5 | 6.1.5 |
Patched Releases
Modern Events Calendar Lite
6.1.5
Timeline
Added to Industry KEV feed
Nov 15, 2021
Publicly disclosed
Dec 13, 2021
Last updated
Nov 21, 2024
Added to CIRCL KEV
Sep 17, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/3bfc18fa-905c-408f-bbb4-ce207c322298?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/3bfc18fa-905c-408f-bbb4-ce207c322298?source=api-scan
- exploithttp://packetstormsecurity.com/files/165742/WordPress-Modern-Events-Calendar-6.1-SQL-Injection.html
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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
Affected: Modern Events Calendar Lite (Webnus) versions >= 6.1.5. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Nov 15, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Modern Events Calendar Lite 6.1.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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