gsd-2020-11055
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.
Aliases
Aliases
CVE-2020-11055


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-11055",
    "description": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.",
    "id": "GSD-2020-11055"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-11055"
      ],
      "details": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.",
      "id": "GSD-2020-11055",
      "modified": "2023-12-13T01:22:06.616092Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-11055",
        "STATE": "PUBLIC",
        "TITLE": "Cross-site Scripting in BookStack"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "BookStack",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003e= 0.18.0, \u003c 0.29.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "BookStackApp"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2."
          }
        ]
      },
      "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": [
              {
                "lang": "eng",
                "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w",
            "refsource": "CONFIRM",
            "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w"
          },
          {
            "name": "https://bookstackapp.com/blog/beta-release-v0-29-2/",
            "refsource": "MISC",
            "url": "https://bookstackapp.com/blog/beta-release-v0-29-2/"
          },
          {
            "name": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2",
            "refsource": "MISC",
            "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2"
          },
          {
            "name": "JVN#41035278",
            "refsource": "JVN",
            "url": "http://jvn.jp/en/jp/JVN41035278/index.html"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-5vf7-q87h-pg6w",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=0.18.0,\u003c0.29.2",
          "affected_versions": "All versions starting from 0.18.0 before 0.29.2",
          "cvss_v2": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-78",
            "CWE-79",
            "CWE-937"
          ],
          "date": "2021-01-08",
          "description": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.",
          "fixed_versions": [
            "0.29.2"
          ],
          "identifier": "CVE-2020-11055",
          "identifiers": [
            "GHSA-5vf7-q87h-pg6w",
            "CVE-2020-11055"
          ],
          "not_impacted": "All versions before 0.18.0, all versions starting from 0.29.2",
          "package_slug": "packagist/ssddanbrown/bookstack",
          "pubdate": "2020-05-07",
          "solution": "Upgrade to version 0.29.2 or above.",
          "title": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "urls": [
            "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w",
            "https://bookstackapp.com/blog/beta-release-v0-29-2/",
            "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2",
            "https://nvd.nist.gov/vuln/detail/CVE-2020-11055",
            "http://jvn.jp/en/jp/JVN41035278/index.html",
            "https://github.com/advisories/GHSA-5vf7-q87h-pg6w"
          ],
          "uuid": "f7f67b98-21dd-464c-a992-4ab518076886"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.29.2",
                "versionStartIncluding": "0.18.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-11055"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w"
            },
            {
              "name": "https://bookstackapp.com/blog/beta-release-v0-29-2/",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Vendor Advisory"
              ],
              "url": "https://bookstackapp.com/blog/beta-release-v0-29-2/"
            },
            {
              "name": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2"
            },
            {
              "name": "JVN#41035278",
              "refsource": "JVN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://jvn.jp/en/jp/JVN41035278/index.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "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": "2020-05-13T17:30Z",
      "publishedDate": "2020-05-07T21:15Z"
    }
  }
}


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