Vulnerability-Lookup

GHSA-6MXW-2VHF-42G5

Vulnerability from github – Published: 2026-03-04 03:31 – Updated: 2026-03-04 21:34

Summary

Concrete CMS vulnerable to Cross-Site Request Forgery (CSRF)

Details

The Concrete CMS security team thanks z3rco for reporting

Severity ?

2.3 (Low)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "concrete5/concrete5"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.4.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-2994"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-352"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-04T21:34:58Z",
    "nvd_published_at": "2026-03-04T03:16:04Z",
    "severity": "LOW"
  },
  "details": "Concrete CMS below version 9.4.8 is subject to\u00a0CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token.\u00a0\n\nThe Concrete CMS security team thanks z3rco for reporting",
  "id": "GHSA-6mxw-2vhf-42g5",
  "modified": "2026-03-04T21:34:58Z",
  "published": "2026-03-04T03:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2994"
    },
    {
      "type": "WEB",
      "url": "https://github.com/concretecms/concretecms/pull/12826"
    },
    {
      "type": "WEB",
      "url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/concretecms/concretecms"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Concrete CMS vulnerable to Cross-Site Request Forgery (CSRF)"
}

CVE-2026-2994 (GCVE-0-2026-2994)

Vulnerability from cvelistv5 – Published: 2026-03-04 02:18 – Updated: 2026-03-04 15:05

Title

Concrete CMS below 9.4.8 is vulnerable to CSRF by a Rogue Admin using the Anti-Spam Allowlist Group

Summary

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks z3rco for reporting

Severity ?

2.3 (Low)


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

CWE

CWE-352 - Cross-Site Request Forgery (CSRF)

Assigner

ConcreteCMS

References

URL

Tags

	https://github.com/concretecms/concretecms/pull/12826
	https://documentation.concretecms.org/9-x/develop…

Impacted products

	Vendor	Product	Version
	Concrete CMS	Concrete CMS	Unaffected: 5 , < 9.4.8 (git)

Credits

z3rco

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-2994",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-04T15:04:57.398439Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-04T15:05:06.451Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Concrete CMS",
          "programFiles": [
            "https://github.com/concretecms/concretecms"
          ],
          "repo": "https://github.com/concretecms/concretecms",
          "vendor": "Concrete CMS",
          "versions": [
            {
              "lessThan": "9.4.8",
              "status": "unaffected",
              "version": "5",
              "versionType": "git"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "z3rco"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eConcrete CMS below version 9.4.8 is subject to\u0026nbsp;\u003c/span\u003eCSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token.\u0026nbsp;The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks z\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e3rco for reporting\u0026nbsp;\u003c/span\u003e\u003c/span\u003e\u003cbr\u003e\u003cbr\u003e"
            }
          ],
          "value": "Concrete CMS below version 9.4.8 is subject to\u00a0CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector\u00a0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks z3rco for reporting"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-352",
              "description": "CWE-352 Cross-Site Request Forgery (CSRF)",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-04T02:18:31.326Z",
        "orgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de",
        "shortName": "ConcreteCMS"
      },
      "references": [
        {
          "url": "https://github.com/concretecms/concretecms/pull/12826"
        },
        {
          "url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes"
        }
      ],
      "source": {
        "advisory": "3437650",
        "defect": [
          "HackerOne"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Concrete CMS below 9.4.8 is vulnerable to CSRF by a Rogue Admin using the Anti-Spam Allowlist Group",
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    "assignerShortName": "ConcreteCMS",
    "cveId": "CVE-2026-2994",
    "datePublished": "2026-03-04T02:18:31.326Z",
    "dateReserved": "2026-02-22T21:54:25.204Z",
    "dateUpdated": "2026-03-04T15:05:06.451Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-6MXW-2VHF-42G5

CVE-2026-2994 (GCVE-0-2026-2994)

Tags

Sightings

Nomenclature