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CVE-2026-87900: CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') in WebPros WP Toolkit for cPanel

0
Critical
VulnerabilityCVE-2026-87900cvecve-2026-87900cwe-88
Published: 09/23/2026 (09/23/2026, 19:52:47 UTC)
Source: CVE Database V5
Vendor/Project: WebPros
Product: WP Toolkit for cPanel

Description

Argument injection in WP Toolkit for cPanel 6.11.2-10794 and earlier allows remote authenticated users to read arbitrary files and execute arbitrary code across customer accounts.

CVSS v4.0

Score 9.4critical

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected software

WebPros

WP Toolkit for cPanel

Affected versions
>=0 <=6.11.2-10794
cpanel/wp-toolkit
pkg:rpm/cpanel/wp-toolkit
Affected versions
>=0 <6.11.2-10795

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/23/2026, 20:17:44 UTC

Technical Analysis

This vulnerability in WP Toolkit for cPanel (versions <=6.11.2-10794) is due to improper neutralization of argument delimiters, classified as CWE-88. Remote authenticated users can exploit this argument injection flaw to read arbitrary files and execute arbitrary code across multiple customer accounts, leading to potential full compromise of affected systems. The CVSS 4.0 score is 9.4, indicating a critical severity with network attack vector, low attack complexity, no user interaction, and high impacts on confidentiality, integrity, availability, and security requirements.

Potential Impact

Successful exploitation allows remote authenticated users to read arbitrary files and execute arbitrary code across customer accounts, potentially compromising confidentiality, integrity, and availability of the affected systems and data.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to authenticated users and monitor for suspicious activity related to WP Toolkit for cPanel.

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Technical Details

Data Version
5.2
Assigner Short Name
hackerone
Date Reserved
2026-09-09T15:00:00.574Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6ab43089f7a7c5410643142d

Added to database: 09/23/2026, 20:03:21 UTC

Last enriched: 09/23/2026, 20:17:44 UTC

Last updated: 09/24/2026, 01:57:04 UTC

Views: 10

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