GSD-2020-26298

Vulnerability from gsd - Updated: 2021-01-11 00:00
Details
Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used.
Aliases
Aliases
CVE-2020-26298
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-26298",
    "description": "Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.",
    "id": "GSD-2020-26298",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-26298.html",
      "https://www.debian.org/security/2021/dsa-4831"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "redcarpet",
            "purl": "pkg:gem/redcarpet"
          }
        }
      ],
      "aliases": [
        "CVE-2020-26298",
        "GHSA-q3wr-qw3g-3p4h"
      ],
      "details": "Redcarpet is a Ruby library for Markdown processing. In Redcarpet before\nversion 3.5.1, there is an injection vulnerability which can enable a cross-site\nscripting attack. In affected versions no HTML escaping was being performed when\nprocessing quotes. This applies even when the `:escape_html` option was being used.\n",
      "id": "GSD-2020-26298",
      "modified": "2021-01-11T00:00:00.000Z",
      "published": "2021-01-11T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793"
        },
        {
          "type": "WEB",
          "url": "https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 6.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Injection/XSS in Redcarpet"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-26298",
        "STATE": "PUBLIC",
        "TITLE": "Injection in Redcarpet"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "redcarpet",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 3.5.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "vmg"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)"
              }
            ]
          },
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-79 Cross-site Scripting (XSS)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/advisories/GHSA-q3wr-qw3g-3p4h",
            "refsource": "CONFIRM",
            "url": "https://github.com/advisories/GHSA-q3wr-qw3g-3p4h"
          },
          {
            "name": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793",
            "refsource": "MISC",
            "url": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793"
          },
          {
            "name": "https://rubygems.org/gems/redcarpet",
            "refsource": "MISC",
            "url": "https://rubygems.org/gems/redcarpet"
          },
          {
            "name": "https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security",
            "refsource": "MISC",
            "url": "https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security"
          },
          {
            "name": "[debian-lts-announce] 20210115 [SECURITY] [DLA 2526-1] ruby-redcarpet security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00014.html"
          },
          {
            "name": "DSA-4831",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2021/dsa-4831"
          },
          {
            "name": "FEDORA-2023-597f13ffb9",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNO4ZZUPGAEUXKQL4G2HRIH7CUZKPCT6/"
          },
          {
            "name": "FEDORA-2023-8682a0e17d",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFMYDIONVWATY7EB6EARDVXT47AYCRNM/"
          },
          {
            "name": "FEDORA-2023-44daa9c1d4",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXNNWHHAPREDM3XJDACYRTK7DBMUONBI/"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-q3wr-qw3g-3p4h",
        "discovery": "UNKNOWN"
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2020-26298",
      "cvss_v3": 6.8,
      "date": "2021-01-11",
      "description": "Redcarpet is a Ruby library for Markdown processing. In Redcarpet before\nversion 3.5.1, there is an injection vulnerability which can enable a cross-site\nscripting attack. In affected versions no HTML escaping was being performed when\nprocessing quotes. This applies even when the `:escape_html` option was being used.\n",
      "gem": "redcarpet",
      "ghsa": "q3wr-qw3g-3p4h",
      "patched_versions": [
        "\u003e= 3.5.1"
      ],
      "related": {
        "url": [
          "https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security"
        ]
      },
      "title": "Injection/XSS in Redcarpet",
      "url": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c3.5.1",
          "affected_versions": "All versions before 3.5.1",
          "cvss_v2": "AV:N/AC:M/Au:N/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-74",
            "CWE-79",
            "CWE-937"
          ],
          "date": "2021-01-16",
          "description": "In Redcarpet there is an injection vulnerability which can enable a cross-site scripting attack. This applies even when the `:escape_html` option was being used.",
          "fixed_versions": [
            "3.5.1"
          ],
          "identifier": "CVE-2020-26298",
          "identifiers": [
            "CVE-2020-26298",
            "GHSA-q3wr-qw3g-3p4h"
          ],
          "not_impacted": "All versions starting from 3.5.1",
          "package_slug": "gem/redcarpet",
          "pubdate": "2021-01-11",
          "solution": "Upgrade to version 3.5.1 or above.",
          "title": "Cross-site Scripting",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26298"
          ],
          "uuid": "56f92ad4-5011-4d9c-bc60-0e136c6cba22"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:redcarpet_project:redcarpet:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.5.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-26298"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                },
                {
                  "lang": "en",
                  "value": "CWE-74"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/vmg/redcarpet/commit/a699c82292b17c8e6a62e1914d5eccc252272793"
            },
            {
              "name": "https://rubygems.org/gems/redcarpet",
              "refsource": "MISC",
              "tags": [
                "Product",
                "Third Party Advisory"
              ],
              "url": "https://rubygems.org/gems/redcarpet"
            },
            {
              "name": "https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/vmg/redcarpet/blob/master/CHANGELOG.md#version-351-security"
            },
            {
              "name": "https://github.com/advisories/GHSA-q3wr-qw3g-3p4h",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/advisories/GHSA-q3wr-qw3g-3p4h"
            },
            {
              "name": "[debian-lts-announce] 20210115 [SECURITY] [DLA 2526-1] ruby-redcarpet security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00014.html"
            },
            {
              "name": "DSA-4831",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2021/dsa-4831"
            },
            {
              "name": "FEDORA-2023-597f13ffb9",
              "refsource": "FEDORA",
              "tags": [],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNO4ZZUPGAEUXKQL4G2HRIH7CUZKPCT6/"
            },
            {
              "name": "FEDORA-2023-44daa9c1d4",
              "refsource": "FEDORA",
              "tags": [],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXNNWHHAPREDM3XJDACYRTK7DBMUONBI/"
            },
            {
              "name": "FEDORA-2023-8682a0e17d",
              "refsource": "FEDORA",
              "tags": [],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFMYDIONVWATY7EB6EARDVXT47AYCRNM/"
            }
          ]
        }
      },
      "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": "2023-05-09T04:15Z",
      "publishedDate": "2021-01-11T19:15Z"
    }
  }
}



Log in or create an account to share your comment.




Tags
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.