CVE-2025-66429Network attack vector

Root privilege escalation via path traversal overwrite

Published Dec 11, 2025 · Updated Dec 11, 2025

Path traversal in the cPanel Team Manager API in versions 110 through 132 allows local users to overwrite arbitrary files and gain root privileges. The API insufficiently validates a user-supplied path before writing, allowing traversal outside the intended directory and replacement of root-controlled files. A low-privileged cPanel account is sufficient, and the affected API is reachable on a default installation without special server configuration.

CVSS severity9.3
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the cPanel Team Manager API in versions 110 through 132 allows local users to overwrite arbitrary files and gain root privileges. The API insufficiently validates a user-supplied path before writing, allowing traversal outside the intended directory and replacement of root-controlled files. A low-privileged cPanel account is sufficient, and the affected API is reachable on a default installation without special server configuration.

The record

CVE
CVE-2025-66429
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.3cPanelCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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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