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CVE-2021-24604

MEDIUM 4.8 CVSS 3.1
Published
September 20, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

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

Affected products and versions

  • Unknown Availability Calendar — From 1.2.2 (including) to 1.2.2 (excluding)
  • offshorewebmaster availability_calendar — Before 1.2.2

References

  • wpscan.com https://wpscan.com/vulnerability/d084c5b1-45f1-4e7e-b3e9-3c98ae4bce9c Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record