GSD-2023-43797

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds.
Aliases
Aliases
CVE-2023-43797
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{
  "GSD": {
    "alias": "CVE-2023-43797",
    "id": "GSD-2023-43797"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-43797"
      ],
      "details": "BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds.",
      "id": "GSD-2023-43797",
      "modified": "2023-12-13T01:20:44.773710Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-43797",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "bigbluebutton",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 2.6.11"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 2.7.0-alpha.1, \u003c 2.7.0-beta.3"
                        }
                      ]
                    }
                  }
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            "value": "BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-79",
                "lang": "eng",
                "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6wg-q866-h73x",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6wg-q866-h73x"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/pull/18392",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/pull/18392"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/commit/304bc851a00558f99a908880f4ac44234a074c9d",
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            "url": "https://github.com/bigbluebutton/bigbluebutton/commit/304bc851a00558f99a908880f4ac44234a074c9d"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-v6wg-q866-h73x",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:beta2:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:beta1:*:*:*:*:*:*",
                "cpe_name": [],
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              {
                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:alpha1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:alpha2:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:alpha3:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.6.11",
                "vulnerable": true
              }
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            "operator": "OR"
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          "ID": "CVE-2023-43797"
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        "data_type": "CVE",
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        "description": {
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            {
              "lang": "en",
              "value": "BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
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                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/bigbluebutton/bigbluebutton/commit/304bc851a00558f99a908880f4ac44234a074c9d",
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            },
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            },
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              ],
              "url": "https://github.com/bigbluebutton/bigbluebutton/pull/18392"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.3,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2023-11-07T23:08Z",
      "publishedDate": "2023-10-30T23:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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