CVE-2021-24556 (GCVE-0-2021-24556)

Vulnerability from cvelistv5 – Published: 2021-08-23 11:10 – Updated: 2024-08-03 19:35
VLAI
Title
Email Subscriber <= 1.1 - Unauthenticated Stored Cross-Site Scripting (XSS)
Summary
The kento_email_subscriber_ajax AJAX action of the Email Subscriber WordPress plugin through 1.1, does not properly sanitise, validate and escape the submitted subscribe_email and subscribe_name POST parameters, inserting them in the DB and then outputting them back in the Subscriber list (/wp-admin/edit.php?post_type=kes_campaign&page=kento_email_subscriber_list_settings), leading a Stored XSS issue.
CWE
  • CWE-79 - Cross-site Scripting (XSS)
References
Impacted products
Vendor Product Version CPE status
Unknown Email Subscriber Affected: 1.1 , ≤ 1.1 (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:35:20.064Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Email Subscriber",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThanOrEqual": "1.1",
              "status": "affected",
              "version": "1.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Shreya Pohekar of Codevigilant Project"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The kento_email_subscriber_ajax AJAX action of the Email Subscriber WordPress plugin through 1.1, does not properly sanitise, validate and escape the submitted subscribe_email and subscribe_name POST parameters, inserting them in the DB and then outputting them back in the Subscriber list (/wp-admin/edit.php?post_type=kes_campaign\u0026page=kento_email_subscriber_list_settings), leading a Stored XSS issue."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Cross-site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-23T11:10:10.000Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Email Subscriber \u003c= 1.1 - Unauthenticated Stored Cross-Site Scripting (XSS)",
      "x_generator": "WPScan CVE Generator",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "contact@wpscan.com",
          "ID": "CVE-2021-24556",
          "STATE": "PUBLIC",
          "TITLE": "Email Subscriber \u003c= 1.1 - Unauthenticated Stored Cross-Site Scripting (XSS)"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Email Subscriber",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "1.1",
                            "version_value": "1.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Unknown"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Shreya Pohekar of Codevigilant Project"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The kento_email_subscriber_ajax AJAX action of the Email Subscriber WordPress plugin through 1.1, does not properly sanitise, validate and escape the submitted subscribe_email and subscribe_name POST parameters, inserting them in the DB and then outputting them back in the Subscriber list (/wp-admin/edit.php?post_type=kes_campaign\u0026page=kento_email_subscriber_list_settings), leading a Stored XSS issue."
            }
          ]
        },
        "generator": "WPScan CVE Generator",
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-79 Cross-site Scripting (XSS)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8",
              "refsource": "MISC",
              "url": "https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8"
            },
            {
              "name": "https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/",
              "refsource": "MISC",
              "url": "https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2021-24556",
    "datePublished": "2021-08-23T11:10:10.000Z",
    "dateReserved": "2021-01-14T00:00:00.000Z",
    "dateUpdated": "2024-08-03T19:35:20.064Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-24556",
      "date": "2026-09-22",
      "epss": "0.01344",
      "percentile": "0.70144"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:email-subscriber_project:email-subscriber:*:*:*:*:*:wordpress:*:*",
                    "matchCriteriaId": "39909212-BE3F-47CF-9A66-981A0E8C340D",
                    "versionEndIncluding": "1.1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The kento_email_subscriber_ajax AJAX action of the Email Subscriber WordPress plugin through 1.1, does not properly sanitise, validate and escape the submitted subscribe_email and subscribe_name POST parameters, inserting them in the DB and then outputting them back in the Subscriber list (/wp-admin/edit.php?post_type=kes_campaign\u0026page=kento_email_subscriber_list_settings), leading a Stored XSS issue."
          },
          {
            "lang": "es",
            "value": "La acci\u00f3n kento_email_subscriber_ajax del plugin de WordPress Email Subscriber versiones hasta 1.1, no sanea, comprueba y escapa los par\u00e1metros POST subscribe_email y subscribe_name enviados, insert\u00e1ndolos en la base de datos y devolvi\u00e9ndolos a la lista de Suscriptores (/wp-admin/edit.php?post_type=kes_campaign\u0026amp;page=kento_email_subscriber_list_settings), conllevando a un problema de tipo XSS almacenado."
          }
        ],
        "id": "CVE-2021-24556",
        "lastModified": "2024-11-21T05:53:17.763",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": true
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.1,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 2.7,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-08-23T12:15:09.957",
        "references": [
          {
            "source": "contact@wpscan.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/"
          },
          {
            "source": "contact@wpscan.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://codevigilant.com/disclosure/2021/wp-plugin-email-subscriber/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://wpscan.com/vulnerability/f050aedc-f79f-4b27-acac-0cdb33b25af8"
          }
        ],
        "sourceIdentifier": "contact@wpscan.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "contact@wpscan.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T14:40:13+00:00",
      "cve": "CVE-2021-24556",
      "id": "CVE-2021-24556",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Email Subscriber \u003c= 1.1 - Unauthenticated Stored Cross-Site Scripting (XSS)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-24556.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…