Hummingbird Performance - Credentials Disclosure (CVE-2025-14437)

CVE-2025-14437 is a sensitive information exposure vulnerability in the Hummingbird Performance plugin for WordPress, affecting all versions up to 3.18.0. This flaw allows unauthenticated attackers to extract sensitive data, including Cloudflare API credentials, via the 'request' function. Exploitation of this vulnerability could lead to unauthorized access to critical configuration details and potential compromise of associated services.

CrowdSec has been tracking this vulnerability and its exploits since 1st of April 2026.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2025-14437 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. CrowdSec data also reveals a clear uptick in attacks involving CVE-2025-14437 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.

Attackers exploit this vulnerability by directly requesting the log file at /wp-content/wphb-logs/api-debug.log, which may expose sensitive information such as Cloudflare API credentials without requiring authentication.