Vulnerability-Lookup

GHSA-4GHJ-75G5-H9PF

Vulnerability from github – Published: 2026-08-24 18:31 – Updated: 2026-08-24 18:31

Details

Craft CMS versions from 4.0.0-RC1 before 4.18.2 and from 5.0.0-RC1 before 5.10.6 contain an authenticated remote code execution vulnerability in control panel element-search condition handling. A JSON cleanse bypass in condition.config allows Yii behavior/event configuration keys to be interpreted after decoding, enabling command execution as the PHP/web user.

Severity

8.7 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-78416"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-915"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-24T16:17:24Z",
    "severity": "HIGH"
  },
  "details": "Craft CMS versions from 4.0.0-RC1 before 4.18.2 and from 5.0.0-RC1 before 5.10.6 contain an authenticated remote code execution vulnerability in control panel element-search condition handling. A JSON cleanse bypass in condition.config allows Yii behavior/event configuration keys to be interpreted after decoding, enabling command execution as the PHP/web user.",
  "id": "GHSA-4ghj-75g5-h9pf",
  "modified": "2026-08-24T18:31:51Z",
  "published": "2026-08-24T18:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78416"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/releases/tag/5.10.6"
    },
    {
      "type": "WEB",
      "url": "https://www.hckrt.com/hacktivity/HCKRT-JD662P"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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"
    }
  ]
}

CVE-2026-78416 (GCVE-0-2026-78416)

Vulnerability from cvelistv5 – Published: 2026-08-24 15:36 – Updated: 2026-08-25 03:56

Title

Authenticated RCE via `condition.config` JSON cleanse bypass

Summary

Severity

8.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 00:00 UTC

CWE

CWE-915 - Improperly controlled modification of Dynamically-Determined object attributes

Assigner

Hackrate icscert root

References

2 references

URL	Tags
https://www.hckrt.com/hacktivity/HCKRT-JD662P	third-party-advisorytechnical-descriptionmitigation
https://github.com/craftcms/cms/releases/tag/5.10.6	release-notes

Impacted products

1 product

Vendor	Product	Version
craftcms	cms	Affected: 4.0.0-RC1 , < 4.18.2 (semver) Affected: 5.0.0-RC1 , < 5.10.6 (semver) cpe:2.3:a:craftcms:cms:::::::: cpe:2.3:a:craftcms:cms::::::::

Credits

saladin Hackrate

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-78416",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-25T03:56:39.218Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "cms",
          "vendor": "craftcms",
          "versions": [
            {
              "lessThan": "4.18.2",
              "status": "affected",
              "version": "4.0.0-RC1",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.6",
              "status": "affected",
              "version": "5.0.0-RC1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.18.2",
                  "versionStartIncluding": "4.0.0-rc1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.6",
                  "versionStartIncluding": "5.0.0-rc1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "reporter",
          "value": "saladin"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Hackrate"
        }
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      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "type": "text/html",
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            }
          ],
          "value": "Craft CMS versions from 4.0.0-RC1 before 4.18.2 and from 5.0.0-RC1 before 5.10.6 contain an authenticated remote code execution vulnerability in control panel element-search condition handling. A JSON cleanse bypass in condition.config allows Yii behavior/event configuration keys to be interpreted after decoding, enabling command execution as the PHP/web user."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-242",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-242 Code Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "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:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
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      "problemTypes": [
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              "cweId": "CWE-915",
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              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-08-24T15:36:07.971Z",
        "orgId": "7004884b-51e2-48e8-b4a2-5ca29e80453e",
        "shortName": "Hackrate"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory",
            "technical-description",
            "mitigation"
          ],
          "url": "https://www.hckrt.com/hacktivity/HCKRT-JD662P"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/craftcms/cms/releases/tag/5.10.6"
        }
      ],
      "source": {
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    "assignerOrgId": "7004884b-51e2-48e8-b4a2-5ca29e80453e",
    "assignerShortName": "Hackrate",
    "cveId": "CVE-2026-78416",
    "datePublished": "2026-08-24T15:36:07.971Z",
    "dateReserved": "2026-08-24T15:07:04.075Z",
    "dateUpdated": "2026-08-25T03:56:39.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-4GHJ-75G5-H9PF

CVE-2026-78416 (GCVE-0-2026-78416)

Tags

Sightings

Nomenclature