GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2020-27832 (GCVE-0-2020-27832)

Vulnerability from cvelistv5 – Published: 2021-05-27 13:50 – Updated: 2024-08-04 16:25
VLAI
Summary
A flaw was found in Red Hat Quay, where it has a persistent Cross-site Scripting (XSS) vulnerability when displaying a repository's notification. This flaw allows an attacker to trick a user into performing a malicious action to impersonate the target user. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
9.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a quay Affected: quay 3.3.2
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:25:43.224Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905784"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "quay",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "quay 3.3.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in Red Hat Quay, where it has a persistent Cross-site Scripting (XSS) vulnerability when displaying a repository\u0027s notification. This flaw allows an attacker to trick a user into performing a malicious action to impersonate the target user. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-27T13:50:39.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905784"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2020-27832",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "quay",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "quay 3.3.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A flaw was found in Red Hat Quay, where it has a persistent Cross-site Scripting (XSS) vulnerability when displaying a repository\u0027s notification. This flaw allows an attacker to trick a user into performing a malicious action to impersonate the target user. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-79"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1905784",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905784"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-27832",
    "datePublished": "2021-05-27T13:50:39.000Z",
    "dateReserved": "2020-10-27T00:00:00.000Z",
    "dateUpdated": "2024-08-04T16:25:43.224Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-27832",
      "date": "2026-09-03",
      "epss": "0.0091",
      "percentile": "0.57583"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:redhat:quay:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"3.0.0\", \"versionEndExcluding\": \"3.3.2\", \"matchCriteriaId\": \"57EA0E6C-9F68-42BA-B4DE-76C83879CB22\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A flaw was found in Red Hat Quay, where it has a persistent Cross-site Scripting (XSS) vulnerability when displaying a repository\u0027s notification. This flaw allows an attacker to trick a user into performing a malicious action to impersonate the target user. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.\"}, {\"lang\": \"es\", \"value\": \"Se encontr\\u00f3 un fallo en Red Hat Quay, donde presenta una vulnerabilidad de tipo Cross-site Scripting (XSS) persistente cuando se muestra  la notificaci\\u00f3n de un repositorio.\u0026#xa0;Este fallo permite a un atacante enga\\u00f1ar  a un usuario para llevar a cabo una acci\\u00f3n maliciosa para suplantar al usuario objetivo.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema\"}]",
      "id": "CVE-2020-27832",
      "lastModified": "2024-11-21T05:21:53.930",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H\", \"baseScore\": 9.0, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.3, \"impactScore\": 6.0}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:S/C:P/I:P/A:P\", \"baseScore\": 6.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 6.8, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": true}]}",
      "published": "2021-05-27T14:15:07.357",
      "references": "[{\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1905784\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Issue Tracking\", \"Vendor Advisory\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1905784\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"secalert@redhat.com\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-79\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-27832\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2021-05-27T14:15:07.357\",\"lastModified\":\"2024-11-21T05:21:53.930\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in Red Hat Quay, where it has a persistent Cross-site Scripting (XSS) vulnerability when displaying a repository\u0027s notification. This flaw allows an attacker to trick a user into performing a malicious action to impersonate the target user. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 un fallo en Red Hat Quay, donde presenta una vulnerabilidad de tipo Cross-site Scripting (XSS) persistente cuando se muestra  la notificaci\u00f3n de un repositorio.\u0026#xa0;Este fallo permite a un atacante enga\u00f1ar  a un usuario para llevar a cabo una acci\u00f3n maliciosa para suplantar al usuario objetivo.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H\",\"baseScore\":9.0,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.3,\"impactScore\":6.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:P/I:P/A:P\",\"baseScore\":6.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":6.8,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:quay:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0.0\",\"versionEndExcluding\":\"3.3.2\",\"matchCriteriaId\":\"57EA0E6C-9F68-42BA-B4DE-76C83879CB22\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1905784\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1905784\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:57:53+00:00",
      "cve": "CVE-2020-27832",
      "id": "CVE-2020-27832",
      "initial_release_date": "2020-12-09T00:00:00+00:00",
      "product_status:fixed": "6",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "quay: persistent XSS in repository notification display",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-27832.json",
      "version": "3"
    }
  }
}



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.


Detection rules are retrieved from Rulezet.