CVE-2021-24232 Advanced Booking Calendar < 1.6.8 - Authenticated Reflected Cross-Site Scripting (XSS)

Medium 5.4 Published Updated

Authenticated attackers can inject malicious scripts via unsanitized license error messages in the Advanced Booking Calendar plugin settings.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-24232?

CVE-2021-24232 is a medium-severity cross-site scripting vulnerability in Unknown Advanced Booking Calendar, published on 22 Apr 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Advanced Booking Calendar WordPress plugin before 1.6.8 does not sanitise the license error message when output in the settings page, leading to an authenticated reflected Cross-Site Scripting issue

Weakness: CWE-79

Which versions are affected by CVE-2021-24232?

It affects 1 product.

Products include Elbtide Advanced Booking Calendar.

How do I fix CVE-2021-24232?

No fix has been published for CVE-2021-24232 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-24232 being exploited?

There is no known exploitation of CVE-2021-24232 in the wild and no public exploit code.

Sources

Also known as GHSA-mxq8-qjm4-g6gq.

Is CVE-2021-24232 in your software?

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