Hummingbird <= 3.7.3 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2024-32792
CVSS 5.3 (Medium)
Publicly Published April 22, 2024
Last Updated April 29, 2024
Researcher Peng Zhou

Description

The Hummingbird plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on several functions in the /admin/class-ajax.php file in versions up to, and including, 3.7.3. This makes it possible for unauthenticated attackers to perform unauthorized actions like clearing cache.

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Vulnerability Details for Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN

Software Type Plugin
Software Slug hummingbird-performance (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.7.4, or a newer patched version
Affected Version
  • <= 3.7.3
Patched Version
  • 3.7.4

Recent vulnerabilities in Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN

# Title CVE ID CVSS Researchers Date
1 Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN <= 3.21.0 - Unauthenticated Remote Code Execution via Cookie Name in Page Cache Debug Log CVE-2026-83627 9.8 Kuba September 4, 2026
2 Hummingbird <= 3.18.0 - Unauthenticated Sensitive Information Exposure via Log File CVE-2025-14437 7.5 ISMAILSHADOW December 17, 2025
3 Hummingbird <= 3.9.1 - Missing Authorization CVE-2024-43118 4.3 Rafie Muhammad August 7, 2024
4 Hummingbird <= 3.9.1 - Cross-Site Request Forgery CVE-2024-43117 4.3 Rafie Muhammad August 7, 2024
5 Hummingbird <= 3.4.1 - Unauthenticated Path Traversal CVE-2023-1478 5.3 Karol Mazurek (AFINE) March 20, 2023
6 Hummingbird <= 3.3.1 - Admin+ Stored Cross-Site Scripting CVE-2022-0994 5.5 Taurus Omar March 23, 2022

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