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

CVE-2021-24925 (GCVE-0-2021-24925)

Vulnerability from cvelistv5 – Published: 2021-12-13 10:41 – Updated: 2024-08-03 19:49
VLAI
Title
Modern Events Calendar Lite < 6.1.5 - Reflected Cross-Site Scripting
Summary
The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue
CWE
  • CWE-79 - Cross-site Scripting (XSS)
References
Impacted products
Vendor Product Version CPE status
Unknown Modern Events Calendar Lite Affected: 6.1.5 , < 6.1.5 (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:49:14.007Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Modern Events Calendar Lite",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.1.5",
              "status": "affected",
              "version": "6.1.5",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Krzysztof Zaj\u0105c"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Cross-site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-13T10:41:20.000Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Modern Events Calendar Lite \u003c 6.1.5 - Reflected Cross-Site Scripting",
      "x_generator": "WPScan CVE Generator",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "contact@wpscan.com",
          "ID": "CVE-2021-24925",
          "STATE": "PUBLIC",
          "TITLE": "Modern Events Calendar Lite \u003c 6.1.5 - Reflected Cross-Site Scripting"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Modern Events Calendar Lite",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "6.1.5",
                            "version_value": "6.1.5"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Unknown"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Krzysztof Zaj\u0105c"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting 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/82233588-6033-462d-b886-a8ef5ee9adb0",
              "refsource": "MISC",
              "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2021-24925",
    "datePublished": "2021-12-13T10:41:20.000Z",
    "dateReserved": "2021-01-14T00:00:00.000Z",
    "dateUpdated": "2024-08-03T19:49:14.007Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-24925",
      "date": "2026-09-19",
      "epss": "0.00795",
      "percentile": "0.54889"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:webnus:modern_events_calendar_lite:*:*:*:*:*:wordpress:*:*",
                    "matchCriteriaId": "9B0E621E-1A4E-4A16-AD2C-2CBAF0DE2540",
                    "versionEndExcluding": "6.1.5",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue"
          },
          {
            "lang": "es",
            "value": "El plugin Modern Events Calendar Lite de WordPress versiones anteriores a 6.1.5, no sanea ni escapa del par\u00e1metro current_month_divider de su llamada AJAX mec_list_load_more (disponible para usuarios autenticados y no autenticados) antes de devolverlo a la respuesta, conllevando a un problema de Cross-Site Scripting Reflejado"
          }
        ],
        "id": "CVE-2021-24925",
        "lastModified": "2024-11-21T05:54:01.440",
        "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": "2021-12-13T11:15:09.520",
        "references": [
          {
            "source": "contact@wpscan.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
          }
        ],
        "sourceIdentifier": "contact@wpscan.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "contact@wpscan.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T14:36:53+00:00",
      "cve": "CVE-2021-24925",
      "id": "CVE-2021-24925",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Modern Events Calendar Lite \u003c 6.1.5 - Reflected Cross-Site Scripting",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-24925.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…