CVE-2021-24604: Availability Calendar < 1.2.2 - Authenticated Stored Cross-Site Scripting

Q: What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2021-24604.

Q: What is the affected software?

The affected software is the Availability Calendar WordPress plugin before version 1.2.2.

Q: What is the severity of CVE-2021-24604?

The severity of CVE-2021-24604 is medium with a CVSS score of 4.8.

Q: How does this vulnerability affect users?

This vulnerability allows high privilege users to perform Cross-Site Scripting (XSS) attacks even when the unfiltered_html is disallowed.

Q: Is there a fix available for this vulnerability?

Yes, the fix for this vulnerability is to update the Availability Calendar WordPress plugin to version 1.2.2 or newer.

Published Sep 20, 2021

Updated

The Availability Calendar WordPress plugin before 1.2.2 does not sanitise or escape its Category Names before outputting them in page/post where the associated shortcode is embed, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfilteredhtml is disallowed

Affected Software

1 affected component

Offshorewebmaster Availability Calendar Wordpress<1.2.2

Event History

Sep 20, 2021

CVE Published

via MITRE·10:06 AM

Data Sourced

via MITRE·10:06 AM

DescriptionWeakness

Frequently Asked Questions

What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2021-24604.

What is the affected software?

The affected software is the Availability Calendar WordPress plugin before version 1.2.2.

What is the severity of CVE-2021-24604?

The severity of CVE-2021-24604 is medium with a CVSS score of 4.8.

How does this vulnerability affect users?

This vulnerability allows high privilege users to perform Cross-Site Scripting (XSS) attacks even when the unfiltered_html is disallowed.

Is there a fix available for this vulnerability?