CVE-2021-24946 Modern Events Calendar < 6.1.5 - Unauthenticated Blind SQL Injection

What is CVE-2021-24946?

CVE-2021-24946 is a critical SQL injection vulnerability in Unknown Modern Events Calendar Lite, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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

Weakness: CWE-89

Which versions are affected by CVE-2021-24946?

It affects 1 product.

Products include Webnus Modern Events Calendar Lite.

How do I fix CVE-2021-24946?

No fix has been published for CVE-2021-24946 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2021-24946 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24946 exists.

Public exploit code: 1 Metasploit module, 1 Exploit-DB entry and 1 Nuclei template.

Other vulnerabilities in Unknown Modern Events Calendar Lite

• CVE-2021-24149 Modern Events Calendar Lite < 5.16.6 - Authenticated SQL Injection High 8.8
• CVE-2021-24146 Modern Events Calendar Lite < 5.16.5 - Unauthenticated Events Export High 7.5
• CVE-2021-24145 Modern Events Calendar Lite < 5.16.5 - Authenticated Arbitrary File Upload leading to RCE High 7.2
• CVE-2021-24925 Modern Events Calendar Lite < 6.1.5 - Reflected Cross-Site Scripting Medium 6.1
• CVE-2021-4458 Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection Medium 5.9

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8cmg-w5hw-x6p6.