Vulnerability Monitor

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CVE-2025-4369

The Companion Auto Update plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘update_delay_days’ parameter in all versions up to, and including, 3.9.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Published

2025-07-15T10:15:22.957

Last Modified

2025-07-15T13:14:24.053

Status

Awaiting Analysis

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

References

https://plugins.trac.wordpress.org/browser/companion-auto-update/tags/3.9.2/admin/dashboard.php#L71 ([email protected])
https://plugins.trac.wordpress.org/changeset/3325878/ ([email protected])
https://wordpress.org/plugins/companion-auto-update/#developers ([email protected])
https://www.wordfence.com/threat-intel/vulnerabilities/id/b4c61072-5480-43f3-ad9f-ed3f0d577ebc?source=cve ([email protected])