CVE-2026-87900

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.

Overview

State: PUBLISHED
Assigner (CNA): hackerone
CVSS severity: CRITICAL
CVSS score: 9.4 / 10
CVSS vector: 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
Effective score: 9.4 / 10 CRITICAL source: CNA overview
CWE(s): CWE-88
Reserved: 2026-09-09
Published: 2026-09-23 19:52 UTC
Last updated: 2026-09-23 20:05 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/87xxx/CVE-2026-87900.json
Linked Threat: CVE-2026-87900 — CVE-2026-87900

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-23 20:17:20 UTC
NVD last modified: 2026-09-23 21:17:03 UTC

Affected products (1)

Vendor	Product	Versions	Platforms
WebPros	WP Toolkit for cPanel	`0` (affected), `6.11.3-10850` (unaffected)	—

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://support.cpanel.net/hc/en-us/articles/43597969409943

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (1)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://support.cpanel.net/hc/en-us/articles/43597969409943 support@hackerone.com

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-87900.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-87900",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T20:05:51.395539Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-23T20:05:57.710Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WP Toolkit for cPanel",
          "vendor": "WebPros",
          "versions": [
            {
              "lessThanOrEqual": "6.11.2-10794",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "6.11.3-10850",
              "status": "unaffected",
              "version": "6.11.3-10850",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ali Mustafa (rz1027)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "vectorString": "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",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
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        "shortName": "hackerone"
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      "references": [
        {
          "url": "https://support.cpanel.net/hc/en-us/articles/43597969409943"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2026-87900",
    "datePublished": "2026-09-23T19:52:47.153Z",
    "dateReserved": "2026-09-09T15:00:00.574Z",
    "dateUpdated": "2026-09-23T20:05:57.710Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}