CVE-2021-24604

MediumCVSS 4.8/10Last modified Jun 17, 2026

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

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
Unknown	Availability Calendar	>= 1.2.2, < 1.2.2

References

https://wpscan.com/vulnerability/d084c5b1-45f1-4e7e-b3e9-3c98ae4bce9cExploit, Third Party Advisory
https://wpscan.com/vulnerability/d084c5b1-45f1-4e7e-b3e9-3c98ae4bce9cExploit, Third Party Advisory

Timeline

Published: Sep 20, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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