CVE-2021-24604
4.8 · MEDIUMOverview
CVE-2021-24604 is a medium-severity vulnerability affecting offshorewebmaster availability_calendar. It was published on September 20, 2021 and has a CVSS 3.1 base score of 4.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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 unfiltered_html is disallowed
Remediation
Check the references section for vendor advisories and patches from offshorewebmaster. Update availability_calendar to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| offshorewebmaster | availability_calendar | >= 0, < 1.2.2 | Affected |
Frequently Asked Questions
What is CVE-2021-24604?
CVE-2021-24604 is a medium-severity vulnerability affecting offshorewebmaster availability_calendar. It was published on September 20, 2021 and has a CVSS 3.1 base score of 4.8 (MEDIUM).
How severe is CVE-2021-24604?
This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-24604?
Check the references section for vendor advisories and patches from offshorewebmaster. Update availability_calendar to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-24604?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-24604 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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