CVE-2021-25040: vulnerability in Booking Calendar
Booking Calendar < 8.9.2 - Reflected Cross-Site Scripting
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.8%
exploitation probability
0.8%top 45% of all CVEs
observed exploitation
nono source reports it
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
Unknown · Booking CalendarRelated CVEs — Booking Calendar
In the same product, most dangerous first.
CVE-2023-4620MEDIUMBooking Calendar < 9.7.3.1 - Unauthenticated Stored XSSEPSS 0.6%CVE-2026-105195LOWBooking Calendar 10.15 - 11.8.2 - Editor+ Arbitrary Option DisclosureEPSS —CVE-2026-105193MEDIUMBooking Calendar < 11.8 - Unauthenticated Booking Information Disclosure and Modification via Predictable Booking HashEPSS —