CVE-2021-24646
Booking.com Banner Creator < 1.4.3 - Admin+ Stored Cross-Site Scripting
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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
- Record
CVE-2021-24646- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Booking.com Banner Creator < 1.4.3 - Admin+ Stored Cross-Site Scripting
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
- Record
CVE-2021-24646- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11558 No score
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
- Record
EUVD-2021-11558- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4prq-v9h3-h5fr No score
The Booking.com Banner Creator WordPress plugin through 1.4.2 does not properly sanitize inputs...
The Booking.com Banner Creator WordPress plugin through 1.4.2 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
- Record
GHSA-4prq-v9h3-h5fr- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24646 is a medium vulnerability (CVSS 4.8) in Bookingholdings Booking.com Banner Creator, published November 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 49th percentile. No source names a fixed version.