ubuntu-cve-2021-21252
Vulnerability from osv_ubuntu
Published
2021-01-13 19:15
Modified
2026-05-08 09:50
Summary
Details

The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package "jquery-validation". jquery-validation before version 1.19.3 contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service). This is fixed in 1.19.3.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "phpmyadmin",
            "binary_version": "4:4.0.10-1ubuntu0.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "phpmyadmin",
        "purl": "pkg:deb/ubuntu/phpmyadmin@4:4.0.10-1ubuntu0.1+esm4?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.0.6-1",
        "4:4.0.8-1",
        "4:4.0.9-1",
        "4:4.0.10-1",
        "4:4.0.10-1ubuntu0.1",
        "4:4.0.10-1ubuntu0.1+esm1",
        "4:4.0.10-1ubuntu0.1+esm2",
        "4:4.0.10-1ubuntu0.1+esm3",
        "4:4.0.10-1ubuntu0.1+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "drupal7-mod-civicrm",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@4.7.1+dfsg-2ubuntu1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.7.1+dfsg-1",
        "4.7.1+dfsg-2",
        "4.7.1+dfsg-2ubuntu1",
        "4.7.1+dfsg-2ubuntu1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "otrs",
            "binary_version": "5.0.7-1"
          },
          {
            "binary_name": "otrs2",
            "binary_version": "5.0.7-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "otrs2",
        "purl": "pkg:deb/ubuntu/otrs2@5.0.7-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.0.10-1",
        "5.0.1-1",
        "5.0.1-2",
        "5.0.2-1",
        "5.0.3-1",
        "5.0.5-1",
        "5.0.6-1",
        "5.0.7-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "phpmyadmin",
            "binary_version": "4:4.5.4.1-2ubuntu2.1+esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "phpmyadmin",
        "purl": "pkg:deb/ubuntu/phpmyadmin@4:4.5.4.1-2ubuntu2.1+esm6?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.4.13.1-1",
        "4:4.5.0.2-2",
        "4:4.5.1-1",
        "4:4.5.1-2",
        "4:4.5.1-3",
        "4:4.5.2-1",
        "4:4.5.2-2",
        "4:4.5.3.1-1",
        "4:4.5.4-1",
        "4:4.5.4.1-2",
        "4:4.5.4.1-2ubuntu1",
        "4:4.5.4.1-2ubuntu2",
        "4:4.5.4.1-2ubuntu2.1",
        "4:4.5.4.1-2ubuntu2.1+esm2",
        "4:4.5.4.1-2ubuntu2.1+esm3",
        "4:4.5.4.1-2ubuntu2.1+esm4",
        "4:4.5.4.1-2ubuntu2.1+esm5",
        "4:4.5.4.1-2ubuntu2.1+esm6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "4.7.30+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "4.7.30+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "4.7.30+dfsg-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@4.7.30+dfsg-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.7.23+dfsg-1ubuntu1",
        "4.7.24+dfsg-1ubuntu1",
        "4.7.30+dfsg-1ubuntu1",
        "4.7.30+dfsg-1ubuntu1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "otrs",
            "binary_version": "6.0.5-1"
          },
          {
            "binary_name": "otrs2",
            "binary_version": "6.0.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "otrs2",
        "purl": "pkg:deb/ubuntu/otrs2@6.0.5-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.0.23-1",
        "5.0.24-1",
        "6.0.1-1",
        "6.0.2-1",
        "6.0.3-1",
        "6.0.4-1",
        "6.0.5-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "phpmyadmin",
            "binary_version": "4:4.6.6-5ubuntu0.5+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "phpmyadmin",
        "purl": "pkg:deb/ubuntu/phpmyadmin@4:4.6.6-5ubuntu0.5+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.6.6-5",
        "4:4.6.6-5ubuntu0.2+esm1",
        "4:4.6.6-5ubuntu0.2+esm2",
        "4:4.6.6-5ubuntu0.5",
        "4:4.6.6-5ubuntu0.5+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "5.21.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "5.21.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "5.21.2+dfsg-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@5.21.2+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.11.0+dfsg-1",
        "5.18.1+dfsg-1",
        "5.20.3+dfsg-1",
        "5.21.0+dfsg-1",
        "5.21.1+dfsg-1",
        "5.21.2+dfsg-1",
        "5.21.2+dfsg-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "otrs",
            "binary_version": "6.0.26-1"
          },
          {
            "binary_name": "otrs2",
            "binary_version": "6.0.26-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "otrs2",
        "purl": "pkg:deb/ubuntu/otrs2@6.0.26-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.20-1",
        "6.0.23-2",
        "6.0.24-1",
        "6.0.25-1",
        "6.0.25-2",
        "6.0.25-3",
        "6.0.26-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "phpmyadmin",
            "binary_version": "4:4.9.5+dfsg1-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "phpmyadmin",
        "purl": "pkg:deb/ubuntu/phpmyadmin@4:4.9.5+dfsg1-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.9.1+dfsg1-2",
        "4:4.9.2+dfsg1-1",
        "4:4.9.5+dfsg1-1ubuntu1",
        "4:4.9.5+dfsg1-2",
        "4:4.9.5+dfsg1-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "otrs2",
            "binary_version": "6.2.2-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "otrs2",
        "purl": "pkg:deb/ubuntu/otrs2@6.2.2-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.32-6",
        "6.1.2-1",
        "6.2.1-1",
        "6.2.2-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "5.33.2+dfsg1-1ubuntu1+esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "5.33.2+dfsg1-1ubuntu1+esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "5.33.2+dfsg1-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@5.33.2+dfsg1-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.33.2+dfsg1-1",
        "5.33.2+dfsg1-1build1",
        "5.33.2+dfsg1-1ubuntu1",
        "5.33.2+dfsg1-1ubuntu1+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package \"jquery-validation\". jquery-validation before version 1.19.3 contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service). This is fixed in 1.19.3.",
  "id": "UBUNTU-CVE-2021-21252",
  "modified": "2026-05-08T09:50:05Z",
  "published": "2021-01-13T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-21252"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-jxwx-85vp-gvwm"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/phpmyadmin/phpmyadmin/commit/401eedd288c4e83d69287b97a9f574f231156171"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-21252"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-21252"
  ]
}



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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.
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  • 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.