What’s Vulnerable › Vulnerabilities

CVE-2023-1339: RapidLoad Power-Up for Autoptimize <= 1.7.1 - Missing Authorization in 'uucss_update_rule'

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-10 · updated 2026-06-17
• Weakness: CWE-862

Description

The RapidLoad Power-Up for Autoptimize plugin for WordPress is vulnerable to unauthorized settings update due to a missing capability check on the uucss_update_rule function in versions up to, and including, 1.7.1. This makes it possible for authenticated attackers with subscriber-level access to update caching rules.

Affected products

• shakee93 RapidLoad AI – Optimize Web Vitals Automatically: through 1.7.1

References

• https://plugins.trac.wordpress.org/changeset/2877726/unusedcss/trunk/includes/modules/unused-css/UnusedCSS_Admin.php?contextall=1&old=2847136&old_path=%2Funusedcss%2Ftrunk%2Fincludes%2Fmodules%2Funused-css%2FUnusedCSS_Admin.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/19f126f8-1d59-44b5-8e0e-c37f1fbedf5a?source=cve
• https://plugins.trac.wordpress.org/changeset/2877726/unusedcss/trunk/includes/modules/unused-css/UnusedCSS_Admin.php?contextall=1&old=2847136&old_path=%2Funusedcss%2Ftrunk%2Fincludes%2Fmodules%2Funused-css%2FUnusedCSS_Admin.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/19f126f8-1d59-44b5-8e0e-c37f1fbedf5a

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