CVE-2025-8427: Beaver Builder Plugin (Starter Version) <= 2.9.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'auto_play'

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-23 · updated 2026-10-08
Weakness: CWE-79

Description

The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘auto_play’ parameter in all versions up to, and including, 2.9.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

beaverbuilder Beaver Builder Page Builder – Drag and Drop Website Builder: before 2.9.3.1 — fixed in 2.9.3.1

How to fix

Upgrade to a fixed version: beaverbuilder Beaver Builder Page Builder – Drag and Drop Website Builder 2.9.3.1. Check the vendor advisory for mitigations.

References

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