CVE-2021-24606 Availability Calendar < 1.2.1 - Authenticated SQL Injection

High 8.8 Published Updated

Authenticated attackers with contributor privileges can exploit SQL injection in the Availability Calendar plugin to read or modify database content.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-24606?

CVE-2021-24606 is a high-severity SQL injection vulnerability in Unknown Availability Calendar, published on 20 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Availability Calendar WordPress plugin before 1.2.1 does not escape the category attribute from its shortcode before using it in a SQL statement, leading to a SQL Injection issue, which can be exploited by any user able to add shortcode to posts/pages, such as contributor+

Weakness: CWE-89

Which versions are affected by CVE-2021-24606?

It affects 1 product.

Products include Offshorewebmaster Availability Calendar.

How do I fix CVE-2021-24606?

No fix has been published for CVE-2021-24606 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-2021-24606 being exploited?

There is no known exploitation of CVE-2021-24606 in the wild and no public exploit code.

Sources

Also known as GHSA-rj93-7769-mc4j.

Is CVE-2021-24606 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free