CVE-2026-29202

Arbitrary Perl Code Execution via Unvalidated Plugin Parameter in cPanel create_user

Published May 8, 2026 CVSS 4.0 · 5.3 Medium EPSS 1.9% KEV · Not listed

Description

Insufficient input validation of the `plugin` parameter of the `create_user` plugin allows arbitrary Perl code execution on behalf of the already authenticated account's system user.

Affected Products

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

cPanel (CloudLinux 6, CentOS 6)

unaffected

Version	Status	Constraints
`11.110.0.0`	affected	< 11.110.0.116

WebPros

WP Squared

unaffected

Version	Status	Constraints
`11.136.1.0`	affected	< 11.136.1.11

No data.

Vendor Product Versions

Webpros

Cpanel

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	—
`[11.86.0.0,11.86.0.43)`	affected	generic	—

Webpros

Cpanel (centos 6, Cloudlinux 6)

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

Webpros

Wp Sqaured

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

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.9% (1.855% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://support.cpanel.net/hc/en-us/articles/40311426610327-Security-CVE-2026-29202-cPanel-WHM-WP2-Security-Update-May-08-2026

History

Oct 25, 2026 8:30 PM Title updated View changes

Type	Values Removed	Values Added
Title		Arbitrary Perl Code Execution via Unvalidated Plugin Parameter in cPanel create_user

Sep 24, 2026 8:45 PM Title updated View changes

Type	Values Removed	Values Added
Title	Arbitrary Perl Code Execution via Unvalidated Plugin Parameter in cPanel Create User Plugin

Aug 24, 2026 5:15 PM Title updated View changes

Type	Values Removed	Values Added
Title		Arbitrary Perl Code Execution via Unvalidated Plugin Parameter in cPanel Create User Plugin

May 14, 2026 12:00 AM Title updated View changes

Type	Values Removed	Values Added
Title	Unvalidated Plugin Parameter Enables Arbitrary Perl Code Execution in cPanel

May 13, 2026 10:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}`

May 12, 2026 8:45 PM Title updated View changes

Type	Values Removed	Values Added
Title		Unvalidated Plugin Parameter Enables Arbitrary Perl Code Execution in cPanel

May 12, 2026 6:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X'}`

May 12, 2026 6:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}`	cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X'}`

May 11, 2026 7:15 PM Title updated View changes

Type	Values Removed	Values Added
Title	Arbitrary Perl Code Execution via Unvalidated Plugin Parameter in cPanel create_user

May 11, 2026 6:30 PM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses	CWE-20

May 11, 2026 5:30 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-94
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}`

May 10, 2026 9:45 PM First appearance in the feed. Affected vendors updated View changes

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

May 8, 2026 9:00 PM Title updated View changes

Type	Values Removed	Values Added
Title		Arbitrary Perl Code Execution via Unvalidated Plugin Parameter in cPanel create_user

May 8, 2026 8:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

May 8, 2026 7:00 PM Description updated. Weaknesses updated. Added references View changes

Type	Values Removed	Values Added
Description		Insufficient input validation of the `plugin` parameter of the `create_user` plugin allows arbitrary Perl code execution on behalf of the already authenticated account's system user.
Weaknesses		CWE-20
References		https://support.cpanel.net/hc/en-us/articles/40311426610327-Security-CVE-2026-29202-cPanel-WHM-WP2-Security-Update-May-08-2026