# CVE-2019-15774: ND Booking - Authentication Bypass

> Live exploitation tracking for CVE-2019-15774 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2019-15774

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 6.1
- **Public exploit available:** Yes
- **Affected products:** Nicdark ND Booking
- **Weaknesses:** CWE-601 (URL Redirection to Untrusted Site ('Open Redirect'))
- **Tags:** wordpress

## Description

The nd-booking plugin before 2.5 for WordPress has a nopriv_ AJAX action that allows modification of the siteurl setting.

## CrowdSec analysis

[CVE-2019-15774](https://euvd.enisa.europa.eu/vulnerability/CVE-2019-15774) is a vulnerability in the nd-booking plugin for WordPress prior to version 2.5, where an unauthenticated AJAX action allows attackers to modify the siteurl setting. This flaw could be exploited to redirect users, disrupt site functionality, or facilitate further attacks such as phishing or site takeover.

CrowdSec has been tracking this vulnerability and its exploits since 24th of September 2025.

CrowdSec has not observed any significant exploitation activity targeting CVE-2019-15774 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers exploit unauthenticated requests to `/wp-admin/admin-ajax.php` with the `action=nd_booking_import_settings_php_function` parameter to change plugin options without authorization.

## Timeline

- 2019-08-29: CVE Published. CVE-2019-15774 is published to NVD.
- 2025-09-24: Rule Released. CrowdSec releases a rule to detect CVE-2019-15774 exploitation attempts against the CrowdSec Network.
- 2025-10-29: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2019-15774 for the first time.

## References

- https://threatpost.com/wordpress-plugins-exploited-in-ongoing-attack-researchers-warn/147671/
- https://wordpress.org/plugins/nd-booking/#developers
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-15774.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2019-15774) follows observed exploitation activity for CVE-2019-15774. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.