FKIE_CVE-2021-3742

Vulnerability from fkie_nvd - Published: 2024-11-15 11:15 - Updated: 2026-06-17 04:05
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.9 (High) - CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Summary
A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.
References
security@huntr.devhttps://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50cProduct
security@huntr.devhttps://huntr.com/bounties/1625472546121-chatwoot/chatwootBroken Link
Impacted products
Vendor Product Version
chatwoot chatwoot *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "chatwoot/chatwoot",
          "vendor": "chatwoot",
          "versions": [
            {
              "lessThan": "2.5.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@huntr.dev"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:chatwoot:chatwoot:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "chatwoot",
          "vendor": "chatwoot",
          "versions": [
            {
              "lessThan": "2.5.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chatwoot:chatwoot:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF45FE41-509A-469C-BD22-E4372D1A7310",
              "versionEndExcluding": "2.5.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 una vulnerabilidad de Server-Side Request Forgery (SSRF) en chatwoot/chatwoot, que afecta a todas las versiones anteriores a la 2.5.0. La vulnerabilidad permite a un atacante cargar un archivo SVG que contiene un payload SSRF malicioso. Cuando el archivo SVG se utiliza como avatar y se abre en una nueva pesta\u00f1a, puede activar la SSRF, lo que puede provocar una redirecci\u00f3n del host."
    }
  ],
  "id": "CVE-2021-3742",
  "lastModified": "2026-06-17T04:05:40.683",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.9,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 6.0,
        "source": "security@huntr.dev",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.9,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 6.0,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-3742",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-11-18T14:52:41.849210Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-11-15T11:15:05.547",
  "references": [
    {
      "source": "security@huntr.dev",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c"
    },
    {
      "source": "security@huntr.dev",
      "tags": [
        "Broken Link"
      ],
      "url": "https://huntr.com/bounties/1625472546121-chatwoot/chatwoot"
    }
  ],
  "sourceIdentifier": "security@huntr.dev",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security@huntr.dev",
      "type": "Secondary"
    }
  ]
}


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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

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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.