CVE-2021-24646: Booking.com Banner Creator < 1.4.3 - Admin+ Stored Cross-Site Scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-11-08 · updated 2026-06-17
Weakness: CWE-79

Description

The Booking.com Banner Creator WordPress plugin before 1.4.3 does not properly sanitize inputs when creating banners, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Affected products

Booking.com Banner Creator: before 1.4.3 — fixed in 1.4.3

How to fix

Upgrade to a fixed version: Booking.com Banner Creator 1.4.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/36aae14e-4bdf-4da6-a0f9-d71935105d45
https://wpscan.com/vulnerability/36aae14e-4bdf-4da6-a0f9-d71935105d45

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