Vulnerability-Lookup

CVE-2026-29203 (GCVE-0-2026-29203)

Vulnerability from cvelistv5 – Published: 2026-05-08 18:51 – Updated: 2026-05-15 17:14

Summary

A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-08 00:00 UTC

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

hackerone mitre root

References

1 reference

URL	Tags
https://support.cpanel.net/hc/en-us/articles/4031…

Impacted products

3 products

Vendor	Product	Version	CPE status
WebPros	cPanel	Affected: 11.136.0.0 , < 11.136.0.9 (semver) Affected: 11.134.0.0 , < 11.134.0.25 (semver) Affected: 11.132.0.0 , < 11.132.0.31 (semver) Affected: 11.130.0.0 , < 11.130.0.22 (semver) Affected: 11.126.0.0 , < 11.126.0.58 (semver) Affected: 11.124.0.0 , < 11.124.0.37 (semver) Affected: 11.118.0.0 , < 11.118.0.66 (semver) Affected: 11.110.0.0 , < 11.110.0.117 (semver) Affected: 11.102.0.0 , < 11.102.0.41 (semver) Affected: 11.94.0.0 , < 11.94.0.30 (semver) Affected: 11.86.0.0 , < 11.86.0.43 (semver)	guessed
WebPros	cPanel (CloudLinux 6, CentOS 6)	Affected: 11.110.0.0 , < 11.110.0.116 (semver)	guessed
WebPros	WP Squared	Affected: 11.136.1.0 , < 11.136.1.10 (semver)	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
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            "other": {
              "content": {
                "id": "CVE-2026-29203",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-08T00:00:00+00:00",
                "version": "2.0.3"
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          "dateUpdated": "2026-05-09T03:56:05.260Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "cPanel",
          "vendor": "WebPros",
          "versions": [
            {
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        },
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        }
      ],
      "metrics": [
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            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
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      ],
      "providerMetadata": {
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        "shortName": "hackerone"
      },
      "references": [
        {
          "url": "https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2026-29203",
    "datePublished": "2026-05-08T18:51:05.541Z",
    "dateReserved": "2026-03-04T15:00:09.267Z",
    "dateUpdated": "2026-05-15T17:14:52.318Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-29203",
      "date": "2026-09-16",
      "epss": "0.00493",
      "percentile": "0.41174"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-29203\",\"sourceIdentifier\":\"support@hackerone.com\",\"published\":\"2026-05-08T19:16:30.147\",\"lastModified\":\"2026-06-17T10:29:46.710\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. 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    "redhat_vex": {
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      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2026-29203",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29203.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-29203\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-08T19:19:49.649943Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-08T19:20:00.014Z\"}}], \"cna\": {\"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N\"}}], \"affected\": [{\"vendor\": \"WebPros\", \"product\": \"cPanel\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.136.0.0\", \"lessThan\": \"11.136.0.9\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.134.0.0\", \"lessThan\": \"11.134.0.25\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.132.0.0\", \"lessThan\": \"11.132.0.31\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.130.0.0\", \"lessThan\": \"11.130.0.22\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.126.0.0\", \"lessThan\": \"11.126.0.58\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.124.0.0\", \"lessThan\": \"11.124.0.37\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.118.0.0\", \"lessThan\": \"11.118.0.66\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.110.0.0\", \"lessThan\": \"11.110.0.117\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.102.0.0\", \"lessThan\": \"11.102.0.41\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.94.0.0\", \"lessThan\": \"11.94.0.30\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.86.0.0\", \"lessThan\": \"11.86.0.43\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"WebPros\", \"product\": \"cPanel (CloudLinux 6, CentOS 6)\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.110.0.0\", \"lessThan\": \"11.110.0.116\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"WebPros\", \"product\": \"WP Squared\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.136.1.0\", \"lessThan\": \"11.136.1.10\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-61\", \"description\": \"CWE-61 UNIX Symbolic Link (Symlink) Following\"}]}], \"providerMetadata\": {\"orgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"shortName\": \"hackerone\", \"dateUpdated\": \"2026-05-15T17:14:52.318Z\"}}}",
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}

FKIE_CVE-2026-29203

Vulnerability from fkie_nvd - Published: 2026-05-08 19:16 - Updated: 2026-06-17 10:29

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	support@hackerone.com	https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "cPanel",
          "vendor": "WebPros",
          "versions": [
            {
              "lessThan": "11.136.0.9",
              "status": "affected",
              "version": "11.136.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.134.0.25",
              "status": "affected",
              "version": "11.134.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.132.0.31",
              "status": "affected",
              "version": "11.132.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.130.0.22",
              "status": "affected",
              "version": "11.130.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.126.0.58",
              "status": "affected",
              "version": "11.126.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.124.0.37",
              "status": "affected",
              "version": "11.124.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.118.0.66",
              "status": "affected",
              "version": "11.118.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.110.0.117",
              "status": "affected",
              "version": "11.110.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.102.0.41",
              "status": "affected",
              "version": "11.102.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.94.0.30",
              "status": "affected",
              "version": "11.94.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.86.0.43",
              "status": "affected",
              "version": "11.86.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "cPanel (CloudLinux 6, CentOS 6)",
          "vendor": "WebPros",
          "versions": [
            {
              "lessThan": "11.110.0.116",
              "status": "affected",
              "version": "11.110.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WP Squared",
          "vendor": "WebPros",
          "versions": [
            {
              "lessThan": "11.136.1.10",
              "status": "affected",
              "version": "11.136.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "support@hackerone.com"
    }
  ],
  "cveTags": [],
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    {
      "lang": "en",
      "value": "A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory."
    }
  ],
  "id": "CVE-2026-29203",
  "lastModified": "2026-06-17T10:29:46.710",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "support@hackerone.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-29203",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-08T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-08T19:16:30.147",
  "references": [
    {
      "source": "support@hackerone.com",
      "url": "https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026"
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-61"
        }
      ],
      "source": "support@hackerone.com",
      "type": "Secondary"
    }
  ]
}

GHSA-3X6M-3GRH-599C

Vulnerability from github – Published: 2026-05-08 21:31 – Updated: 2026-05-15 18:30

Details

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-29203"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-61"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T19:16:30Z",
    "severity": "HIGH"
  },
  "details": "A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.",
  "id": "GHSA-3x6m-3grh-599c",
  "modified": "2026-05-15T18:30:30Z",
  "published": "2026-05-08T21:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29203"
    },
    {
      "type": "WEB",
      "url": "https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/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",
      "type": "CVSS_V4"
    }
  ]
}

WID-SEC-W-2026-1441

Vulnerability from csaf_certbund - Published: 2026-05-10 22:00 - Updated: 2026-05-21 22:00

Summary

cPanel cPanel/WHM: Mehrere Schwachstellen

Severity

Hoch

Scope

3 vulnerabilities in this advisory, including CVE-2026-29203.

CVE-2026-29203

Known affected: 18 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-29203 (GCVE-0-2026-29203)

FKIE_CVE-2026-29203

GHSA-3X6M-3GRH-599C

WID-SEC-W-2026-1441

Tags

Sightings

Nomenclature

Related by attack behaviour