WordPress Hummingbird <= 3.18.0 - Sensitive Information Exposure via Log File

Hummingbird Performance WordPress plugin = 3.18.0 contains a sensitive information exposure caused by improper handling in the 'request' function, letting unauthenticated attackers extract sensitive data including Cloudflare API credentials, exploit requires no authentication. id: CVE-2025-14437...

CVE-2026-83627

The Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.21.0 via the logmsg function in core/modules/class-page-cache.php. The page-cache debug log is written to...

EUVD-2026-71839

The Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.21.0 via the logmsg function in core/modules/class-page-cache.php. The page-cache debug log is written to...

CVE-2026-83627

The Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN plugin for WordPress (versions ≤ 3.21.0 ) is vulnerable to unauthenticated remote code execution via a flaw in the page cache debug log. The protective

CVE-2026-83627 Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN <= 3.21.0 - Unauthenticated Remote Code Execution via Cookie Name in Page Cache Debug Log

The Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.21.0 via the logmsg function in core/modules/class-page-cache.php. The page-cache debug log is written to...

CVE-2026-83627 Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN <= 3.21.0 - Unauthenticated Remote Code Execution via Cookie Name in Page Cache Debug Log

The Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.21.0 via the logmsg function in core/modules/class-page-cache.php. The page-cache debug log is written to...

PT-2026-86312

Name of the Vulnerable Software and Affected Versions Hummingbird versions prior to 3.21.1 Description Remote Code Execution is possible via the log msg function in core/modules/class-page-cache.php. The page-cache debug log is written to a web-accessible PHP file that fails to maintain a...

CVE-2026-83627: Improper Control of Generation of Code

The Hummingbird – Speed Optimization, Caching, Minify, Compress & CDN plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.21.0 via the logmsg function in core/modules/class-page-cache.php. The page-cache debug log is written to...

WordPress Hummingbird - Speed Optimization, Caching, Minify, Compress & CDN plugin <= 3.21.0 - Unauthenticated Remote Code Execution via Cookie Name in Page Cache Debug Log vulnerability

WordPress Hummingbird - Speed Optimization, Caching, Minify, Compress & CDN plugin = 3.21.0 - Unauthenticated Remote Code Execution via Cookie Name in Page Cache Debug Log vulnerability discovered by Kuba in WordPress Plugin Hummingbird versions = 3.21.0...

CVE-2026-19224

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network...

EUVD-2026-70902

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network...

CVE-2026-19224 Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on Multisite

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network...

CVE-2026-19224

The Hummingbird Performance WordPress plugin versions before 3.21.2 is vulnerable to a Remote Code Execution (RCE) flaw. The root cause is a failure to restrict a network-wide setting to only network administrators. This allows an administrator of any single site on a WordPress Multisite network ...

WordPress Hummingbird Performance plugin < 3.21.2 - Admin+ Network-Wide RCE vulnerability

Admin+ Network-Wide RCE vulnerability discovered by Jakub Herman in WordPress Plugin Hummingbird versions 3.21.2...

CVE-2026-19224 Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on Multisite

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network...

CVE-2026-19224: Improper Control of Generation of Code

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network...

PT-2026-85408

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network...

CVE-2026-43678

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

CVE-2026-43678

A vulnerability exists in swift-nio affecting NIOWebSocket-based servers , such as Vapor and Hummingbird . An unauthenticated remote attacker can trigger a Denial of Service (DoS) by sending a single 11-byte frame following a completed WebSocket handshake. This causes the server to crash and drop...

CVE-2026-43678

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...