CVE-2026-29201 - Vulnerability Details

Description

Insufficient input validation of the feature file name in `feature::LOADFEATUREFILE` adminbin call can cause arbitrary file read when a relative file path is passed.

Published: 2026-05-08

Score: 8.6 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

The vulnerability is caused by insufficient validation of the file name supplied to the feature::LOADFEATUREFILE administration API call. Passing a relative file path can allow an attacker to read any file that the cPanel process can access. This path traversal flaw (CWE‑23) enables arbitrary file read but the potential for further exploitation is not specified in the advisory.

Affected Systems

The issue affects WebPros products, specifically cPanel, including the WP Squared dashboard, as well as cPanel running on CentOS 6 and CloudLinux 6. No specific version numbers are listed, so any installation of these products remains a potential risk until a patch is applied.

Risk and Exploitability

The CVSS score is 8.6, and the EPSS probability is < 1%. The vulnerability is not listed in CISA’s KEV catalog. Based on the description, it is inferred that the attacker must have access to the feature::LOADFEATUREFILE endpoint, implying an authenticated admin API as the attack vector. The practical likelihood of exploitation depends on the exposure of the admin API and the privileges of the attacker.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

WebPros

cPanel

unaffected

Version	Status	Constraints
`11.136.0.0`	affected	< 11.136.0.9
`11.134.0.0`	affected	< 11.134.0.25
`11.132.0.0`	affected	< 11.132.0.31
`11.130.0.0`	affected	< 11.130.0.22
`11.126.0.0`	affected	< 11.126.0.58
`11.124.0.0`	affected	< 11.124.0.37
`11.118.0.0`	affected	< 11.118.0.66
`11.110.0.0`	affected	< 11.110.0.117
`11.102.0.0`	affected	< 11.102.0.41
`11.94.0.0`	affected	< 11.94.0.30
`11.86.0.0`	affected	< 11.86.0.43

WebPros

WP Squared

unaffected

Version	Status	Constraints
`11.136.1.0`	affected	< 11.136.1.11

WebPros

cPanel (CloudLinux 6, CentOS 6)

unaffected

Version	Status	Constraints
`11.110.0.0`	affected	< 11.110.0.116

No data.

Vendor Product Confidence Versions

Webpros

Cpanel

100%

Version	Status	Scheme	Platform
`[11.136.0.0,11.136.0.9)`	affected	generic	—
`[11.134.0.0,11.134.0.25)`	affected	generic	—
`[11.132.0.0,11.132.0.31)`	affected	generic	—
`[11.130.0.0,11.130.0.22)`	affected	generic	—
`[11.126.0.0,11.126.0.58)`	affected	generic	—
`[11.124.0.0,11.124.0.37)`	affected	generic	—
`[11.118.0.0,11.118.0.66)`	affected	generic	—
`[11.110.0.0,11.110.0.116)`	affected	generic	—
`[11.110.0.0,11.110.0.117)`	affected	generic	—
`[11.102.0.0,11.102.0.41)`	affected	generic	—
`[11.94.0.0,11.94.0.30)`	affected	generic	—
`[11.86.0,11.86.0.43)`	affected	generic	—

Webpros

Cpanel (centos 6, Cloudlinux 6)

100%

Version	Status	Scheme	Platform
`[11.110.0.0,11.110.0.114)`	affected	generic	—

Webpros

Wp Squared

100%

Version	Status	Scheme	Platform
`[11.136.1.0,11.136.1.10)`	affected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply the latest cPanel security update for CVE-2026-29201 released by WebPros.
If the feature::LOADFEATUREFILE API is not required, disable it or restrict access to trusted administrators and IP addresses.
Enforce file system isolation for the cPanel process, such as chroot or containerization, to limit access to non‑essential files.

Generated by OpenCVE AI on May 13, 2026 at 23:23 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00017.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://support.cpanel.net/hc/en-us/articles/40311033698327-Security-CVE-2026-29201-cPanel-WHM-WP2-Security-Update-May-08-2026

History

Wed, 13 May 2026 23:45:00 +0000

Type	Values Removed	Values Added
Title	Insufficient File Name Validation in cPanel Load Feature API Enables Arbitrary File Read

Wed, 13 May 2026 22:15:00 +0000

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}`	cvssV3_1 `{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L'}`

Tue, 12 May 2026 23:15:00 +0000

Type	Values Removed	Values Added
Title		Insufficient File Name Validation in cPanel Load Feature API Enables Arbitrary File Read

Tue, 12 May 2026 18:30:00 +0000

Type	Values Removed	Values Added
Weaknesses	CWE-20

Tue, 12 May 2026 18:15:00 +0000

Type	Values Removed	Values Added
Description	Insufficient input validation of the feature file name in `feature::LOADFEATUREFILE` AdminBin call can cause arbitrary file read when a relative file path is passed.	Insufficient input validation of the feature file name in `feature::LOADFEATUREFILE` adminbin call can cause arbitrary file read when a relative file path is passed.
Weaknesses		CWE-23

Tue, 12 May 2026 00:30:00 +0000

Type	Values Removed	Values Added
Title	Arbitrary File Read via Feature File Name Validation in cPanel Admin API

Mon, 11 May 2026 22:45:00 +0000

Type	Values Removed	Values Added
Description	Insufficient input validation of the feature file name in `feature::LOADFEATUREFILE` adminbin call can cause arbitrary file read when a relative file path is passed.	Insufficient input validation of the feature file name in `feature::LOADFEATUREFILE` AdminBin call can cause arbitrary file read when a relative file path is passed.

Sun, 10 May 2026 21:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Webpros Webpros cpanel Webpros cpanel (centos 6, Cloudlinux 6) Webpros wp Squared
Vendors & Products		Webpros Webpros cpanel Webpros cpanel (centos 6, Cloudlinux 6) Webpros wp Squared

Fri, 08 May 2026 22:15:00 +0000

Type	Values Removed	Values Added
Title	Arbitrary File Read via Feature File Name Validation in cPanel Administration API	Arbitrary File Read via Feature File Name Validation in cPanel Admin API

Fri, 08 May 2026 21:00:00 +0000

Type	Values Removed	Values Added
Title		Arbitrary File Read via Feature File Name Validation in cPanel Administration API

Fri, 08 May 2026 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 08 May 2026 19:00:00 +0000

Type	Values Removed	Values Added
Description		Insufficient input validation of the feature file name in `feature::LOADFEATUREFILE` adminbin call can cause arbitrary file read when a relative file path is passed.
Weaknesses		CWE-20
References		https://support.cpanel.net/hc/en-us/articles/40311033698327-Security-CVE-2026-29201-cPanel-WHM-WP2-Security-Update-May-08-2026

Subscriptions

Webpros Cpanel Cpanel (centos 6, Cloudlinux 6) Wp Squared

MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2026-05-08T18:51:05.803Z

Updated: 2026-05-13T21:59:09.469Z

Reserved: 2026-03-04T15:00:09.267Z

Link: CVE-2026-29201

Vulnrichment

Updated: 2026-05-08T19:52:31.187Z

NVD

Status : Deferred

Published: 2026-05-08T19:16:29.930

Modified: 2026-05-13T22:16:42.497

Link: CVE-2026-29201

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-05-13T23:30:06Z

Weaknesses

CWE-23
Relative Path Traversal

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact Low

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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