Skip to content
Heist/ feed
Critical

WebPros cPanel and WHM Authentication Bypass via Login Flow

Type: advisorySource: Official CVE ListKnown exploited1 source record

cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

Announced Source revision 1
Original source ↗

CVE-2026-41940

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-41940

cPanel

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

WP Squared

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

WHM

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "WebPros",
    "product": "cPanel",
    "versions": [
      {
        "status": "affected",
        "version": "11.40.0.0",
        "lessThan": "11.86.0.41",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.88.0.0",
        "lessThan": "11.94.0.28",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.96.0.0",
        "lessThan": "11.102.0.39",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.104.0.0",
        "lessThan": "11.110.0.97",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.112.0.0",
        "lessThan": "11.118.0.63",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.120.0.0",
        "lessThan": "11.124.0.35",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.126.0.0",
        "lessThan": "11.126.0.54",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.128.0.0",
        "lessThan": "11.130.0.19",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.132.0.0",
        "lessThan": "11.132.0.29",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.134.0.0",
        "lessThan": "11.134.0.20",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.136.0.0",
        "lessThan": "11.136.0.5",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "WebPros",
    "product": "WP Squared",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "11.136.1.7",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "WebPros",
    "product": "WHM",
    "versions": [
      {
        "status": "affected",
        "version": "11.40.0.0",
        "lessThan": "11.86.0.41",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.88.0.0",
        "lessThan": "11.94.0.28",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.96.0.0",
        "lessThan": "11.102.0.39",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.104.0.0",
        "lessThan": "11.110.0.97",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.112.0.0",
        "lessThan": "11.118.0.63",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.120.0.0",
        "lessThan": "11.124.0.35",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.126.0.0",
        "lessThan": "11.126.0.54",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.128.0.0",
        "lessThan": "11.130.0.19",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.132.0.0",
        "lessThan": "11.132.0.29",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.134.0.0",
        "lessThan": "11.134.0.20",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "11.136.0.0",
        "lessThan": "11.136.0.5",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-41940

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-41940 · Unrated

cPanel & WHM and WP2 (WordPress Squared) · Known exploited (CISA KEV)

Event
#4743 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement