CVE-2026-87898

Description

OS command injection in Plesk allows remote authenticated users to execute arbitrary code with root privileges.

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-78
Reserved: 2026-09-09
Published: 2026-09-23 19:52 UTC
Last updated: 2026-09-23 20:06 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/87xxx/CVE-2026-87898.json
Linked Threat: CVE-2026-87898 — CVE-2026-87898

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	Plesk extension "Site Import"	`1.6.6` (affected), `1.12.2` (unaffected)	—

Vendor references (1)

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

https://support.plesk.com/hc/en-us/articles/43641151026583

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.plesk.com/hc/en-us/articles/43641151026583 support@hackerone.com

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-87898.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-87898",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T20:06:19.972843Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-23T20:06:28.175Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
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          "vendor": "WebPros",
          "versions": [
            {
              "lessThanOrEqual": "1.12.1",
              "status": "affected",
              "version": "1.6.6",
              "versionType": "semver"
            },
            {
              "lessThan": "1.12.2",
              "status": "unaffected",
              "version": "1.12.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ali Mustafa (rz1027)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OS command injection in Plesk allows remote authenticated users to execute arbitrary code with root privileges."
        }
      ],
      "metrics": [
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          "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"
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              "description": "CWE-78 OS Command Injection",
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      "providerMetadata": {
        "dateUpdated": "2026-09-23T19:52:47.081Z",
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      "references": [
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  "cveMetadata": {
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    "assignerShortName": "hackerone",
    "cveId": "CVE-2026-87898",
    "datePublished": "2026-09-23T19:52:47.081Z",
    "dateReserved": "2026-09-09T15:00:00.573Z",
    "dateUpdated": "2026-09-23T20:06:28.175Z",
    "state": "PUBLISHED"
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