CVE-2021-24645
Booking.com Product Helper < 1.0.2 - Admin+ Stored Cross-Site Scripting
The Booking.com Product Helper WordPress plugin before 1.0.2 does not sanitize and escape Product Code when creating Product Shortcode, 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 Product Helper WordPress plugin before 1.0.2 does not sanitize and escape Product Code when creating Product Shortcode, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
- Record
CVE-2021-24645- 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 Product Helper < 1.0.2 - Admin+ Stored Cross-Site Scripting
The Booking.com Product Helper WordPress plugin before 1.0.2 does not sanitize and escape Product Code when creating Product Shortcode, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
- Record
CVE-2021-24645- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11557 No score
The Booking.com Product Helper WordPress plugin before 1.0.2 does not sanitize and escape Product Code when creating Product Shortcode, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
- Record
EUVD-2021-11557- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-44w5-xvrv-43pm No score
The Booking.com Product Helper WordPress plugin through 1.0.1 does not sanitize and escape...
The Booking.com Product Helper WordPress plugin through 1.0.1 does not sanitize and escape Product Code when creating Product Shortcode, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
- Record
GHSA-44w5-xvrv-43pm- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24645 is a medium vulnerability (CVSS 4.8) in Bookingholdings Booking.com Product Helper, 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.