High severity · published Dec 18, 2025
CVE-2025-14437
Hummingbird <= 3.18.0 - Unauthenticated Sensitive Information Exposure via Log File
7.5
CVSS
1.8%
EPSS
No
On KEV
Description
The Hummingbird Performance plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.18.0 via the 'request' function. This makes it possible for unauthenticated attackers to extract sensitive data including Cloudflare API credentials.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
Affected product
HP
Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN
wpmudev
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-14437
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-14437
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3421187/hummingbird-performance
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/8755ab3f-ee77-44ea-8620-590f1f1cb333?source=cve
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