WP Compress <= 6.30.30 - Unauthenticated Broken Authentication

Improper Authentication
CVE CVE-2025-47479
CVSS High (7.3)
Publicly Published July 3, 2025
Last Updated July 8, 2025
Researcher Trương Hữu Phúc (truonghuuphuc)
Description

The WP Compress – Instant Performance & Speed Optimization plugin for WordPress is vulnerable to broken authentication in all versions up to, and including, 6.30.30. This makes it possible for unauthenticated attackers to access functionality they should not have access to.

References

1 affected software package

Software Type Plugin
Software Slug wp-compress-image-optimizer (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.30.30
Patched Version
  • 6.30.31
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