CVE-2025-14437Public exploitNetwork attack vector

Unauthenticated credential disclosure via web-accessible debug log

Published Dec 18, 2025 · Updated Dec 18, 2025

Sensitive information exposure in WPMU DEV Hummingbird 3.18.0 and earlier allows remote attackers to read Cloudflare API credentials. The request function records authorization headers in the web-accessible wp-content/wphb-logs/api-debug.log file without redacting secrets. No authentication or user interaction is required, although the log must exist and contain recorded request headers.

CVSS severity7.5
High
EPSS probability1.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in WPMU DEV Hummingbird 3.18.0 and earlier allows remote attackers to read Cloudflare API credentials. The request function records authorization headers in the web-accessible wp-content/wphb-logs/api-debug.log file without redacting secrets. No authentication or user interaction is required, although the log must exist and contain recorded request headers.

The record

CVE
CVE-2025-14437
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
AIOSEO Plugin Team
Product
Hummingbird
Classifications
CWE-532, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=3.18.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AIOSEO Plugin Team · Hummingbirdversion=* <=3.18.0

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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