FKIE_CVE-2021-22953

Vulnerability from fkie_nvd - Published: 2021-09-23 13:15 - Updated: 2026-06-17 03:38
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Summary
A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to clone topics which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security Research Team"
References
support@hackerone.comhttps://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes
support@hackerone.comhttps://hackerone.com/reports/1102225Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1102225Permissions Required
Impacted products
Vendor Product Version
concretecms concrete_cms *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "https://github.com/concrete5/concrete5",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "fixed in Concrete CMS version 8.5.6"
            }
          ]
        }
      ],
      "source": "support@hackerone.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D32443F7-F512-425B-B473-0D22A905BAD4",
              "versionEndIncluding": "8.5.5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to clone topics which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: \"Solar Security Research Team\""
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo CSRF en Concrete CMS versiones 8.5.5 e inferiores,  permite a un atacante clonar temas, lo que puede conllevar a molestias en la Interfaz de Usuario y el agotamiento del espacio en disco. Cr\u00e9dito por la detecci\u00f3n: \"Solar Security Research Team\""
    }
  ],
  "id": "CVE-2021-22953",
  "lastModified": "2026-06-17T03:38:05.980",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-09-23T13:15:09.010",
  "references": [
    {
      "source": "support@hackerone.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes"
    },
    {
      "source": "support@hackerone.com",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://hackerone.com/reports/1102225"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://hackerone.com/reports/1102225"
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "support@hackerone.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.