CVE-2021-24225 Advanced Booking Calendar < 1.6.7 - Authenticated Reflected Cross-Site Scripting (XSS)

What is CVE-2021-24225?

CVE-2021-24225 is a medium-severity cross-site scripting vulnerability in Unknown Advanced Booking Calendar, published on 12 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 1.6.7 did not sanitise the calId GET parameter in the "Seasons & Calendars" page before outputing it in an A tag, leading to a reflected XSS issue

Weakness: CWE-79

Which versions are affected by CVE-2021-24225?

It affects 1 product.

Products include Elbtide Advanced Booking Calendar.

How do I fix CVE-2021-24225?

No fix has been published for CVE-2021-24225 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-2021-24225 being exploited?

There is no known exploitation of CVE-2021-24225 in the wild and no public exploit code.

Other vulnerabilities in Unknown Advanced Booking Calendar

• CVE-2022-45822 WordPress Advanced Booking Calendar Plugin <= 1.7.1 is vulnerable to SQL Injection Critical 10.0
• CVE-2022-0694 Advanced Booking Calendar < 1.7.0 - Unauthenticated SQL Injection Critical 9.8
• CVE-2022-1006 Advanced Booking Calendar < 1.7.1 - Admin+ SQLi High 7.2
• CVE-2022-1007 Advanced Booking Calendar < 1.7.1 - Reflected Cross-Site Scripting Medium 6.1
• CVE-2022-45824 WordPress Advanced Booking Calendar Plugin <= 1.7.1 is vulnerable to Cross Site Request Forgery (CSRF) Medium 5.4

Sources

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

Also known as GHSA-2hmj-h5rh-f294.