Quick answers
- Is CVE-2026-73402 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73402 being exploited in the wild.
- How severe is CVE-2026-73402?
- Medium severity, with a CVSS score of 6.5, published 20 August 2026.
- Which products and versions are affected?
- WP BASE Booking ≤ 6.3.2.
- Is there a fix for CVE-2026-73402?
- A patch was published on 2026-08-20: Fixed in version 6.4.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-73402 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-73402?
- Check whether you run WP BASE Booking at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This is a stored or reflected cross-site scripting (XSS) vulnerability in WP BASE Booking plugin versions 6.3.2 and earlier. The vulnerability requires subscriber-level privileges and user interaction (such as clicking a malicious link or visiting a crafted page) to be successfully exploited. An attacker with subscriber access can inject malicious JavaScript that executes in the browser context of other users, potentially allowing session hijacking, credential theft, or malware distribution. The vulnerability is fixed in version 6.4.0; users should upgrade immediately.
Affected products
- WP BASE Booking WP BASE Booking ≤ 6.3.2
Timeline
- 2026-08-20: disclosed
- 2026-08-20: patched: Fixed in version 6.4.0