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Vulnerability record · CVE-2026-5934 · published 28 August 2026

CVE-2026-5934: Cross-site scripting vulnerability

The WP Rocket plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.21.0.1. This is due to insufficient input sanitization and output escaping of user-supplied data via the rocket_beacon AJAX endpoint. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

7.2 CVSS 3.1 High EPSS 0.34% · top 74.9% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
28 Aug 2026Last modified by NVD

Description

The WP Rocket plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.21.0.1. This is due to insufficient input sanitization and output escaping of user-supplied data via the rocket_beacon AJAX endpoint. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References

LinkTags
https://github.com/wp-media/wp-rocket/releases/tag/v3.21.1
https://www.wordfence.com/threat-intel/vulnerabilities/id/3560bf50-2190-4469-9d92-b6b59f118324?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-5934), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.