CVE-2021-25040: Booking Calendar < 8.9.2 - Reflected Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-01-03 · updated 2026-06-17
Weakness: CWE-79

Description

The Booking Calendar WordPress plugin before 8.9.2 does not sanitise and escape the booking_type parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting

Affected products

codepeople Booking Calendar Contact Form: before 8.9.2 — fixed in 8.9.2

How to fix

Upgrade to a fixed version: codepeople Booking Calendar Contact Form 8.9.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/3ed821a6-c3e2-4964-86f8-d14c4a54708a
https://wpscan.com/vulnerability/3ed821a6-c3e2-4964-86f8-d14c4a54708a

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