What’s Vulnerable › Vulnerabilities

CVE-2024-4445: WP Compress – Image Optimizer [All-In-One] <= 6.20.01 - Missing Authorization

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-14 · updated 2026-06-17
• Weakness: CWE-862

Description

The WP Compress – Image Optimizer [All-In-One] plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the several functions in versions up to, and including, 6.20.01. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to edit plugin settings, including storing cross-site scripting, in multisite environments.

Affected products

• aresit WP Compress – Instant Performance & Speed Optimization: before 6.20.02 — fixed in 6.20.02

How to fix

Upgrade to a fixed version: aresit WP Compress – Instant Performance & Speed Optimization 6.20.02. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/wp-compress-image-optimizer/trunk/classes/mu.class.php?rev=2946135
• https://plugins.trac.wordpress.org/changeset/3082085/#file655
• https://www.wordfence.com/threat-intel/vulnerabilities/id/830f53a4-da3b-4a95-99f1-c4a4c8e6944c?source=cve
• https://plugins.trac.wordpress.org/browser/wp-compress-image-optimizer/trunk/classes/mu.class.php?rev=2946135
• https://plugins.trac.wordpress.org/changeset/3082085/#file655
• https://www.wordfence.com/threat-intel/vulnerabilities/id/830f53a4-da3b-4a95-99f1-c4a4c8e6944c?source=cve

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