Quick answers
- Is CVE-2026-5934 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-5934 being exploited in the wild.
- How severe is CVE-2026-5934?
- High severity, with a CVSS score of 7.2, published 28 August 2026.
- Which products and versions are affected?
- WP Media WP Rocket up to 3.21.0.1.
- Is there a fix for CVE-2026-5934?
- A patch was published on 2026-04-07: Version 3.21.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-5934 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-5934?
- Check whether you run WP Media WP Rocket 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
The vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the rocket_beacon AJAX endpoint of WP Rocket versions up to 3.21.0.1. The root cause is insufficient input sanitization and output escaping of user-supplied data submitted to this endpoint. Because the endpoint is accessible to unauthenticated users and the malicious payload is stored in the database, any subsequent visitor to an affected page will execute the injected script in their browser context. The vulnerability was patched in version 3.21.1. The attack requires no authentication, user interaction, or special preconditions beyond the plugin being installed and active.
Affected products
- WP Media WP Rocket up to 3.21.0.1
Timeline
- 2026-08-28: disclosed
- 2026-04-07: patched: Version 3.21.1 released