Vulnerabilities / Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN
Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN vulnerabilities
Advisories WPSec published for Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN. Other sources may list more. Its attack surface: Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN on WPSec AttackSurface.
| Published | ID | Vulnerability | Severity | Fixed in |
|---|---|---|---|---|
| 2026-11-04 | WPSEC-2026-2453 | Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN <= 3.21.2 - Authenticated (Author+) Missing Authorization to Asset Optimization Settings Update and CDN Toggle | Medium 4.3 | 4.0.0 |
License: CC BY 4.0