Reflected cross-site scripting in Product Filter for WooCommerce by WBW
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable in all versions up to and including 3.4.6. Insufficient input sanitization and output escaping of the 'wpf_fid' JSON parameter enable reflected cross-site scripting (CWE-79), and versions with the 3.4.3 patch remain affected because the value from the JSON-decoded filterSettings payload is never sanitized. An unauthenticated attacker can inject arbitrary web scripts that run if a user is tricked into clicking a link.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Description from the CNA
The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'wpf_fid' JSON Parameter in all versions up to, and including, 3.4.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The vulnerability persists in versions that received the 3.4.3 patch because absint() was applied only to the getVar() read path, leaving the wpf_fid value read from the JSON-decoded filterSettings payload entirely unsanitized.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Product Filter for WooCommerce by WBW.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Timeline
- 2026-10-31 Threatist record created from CVE-2026-88942
- 2026-10-31 Alias added: GHSA-gcmh-9x86-4rvc
- 2026-11-01 Priority changed: MEDIUM → LOW
- 2026-11-01 CISA SSVC decision points changed
References
Other 15
- https://www.wordfence.com/threat-intel/vulnerabilities/id/93f80f84-68b1-4c11-8bc8-19b78e253129?source=cve
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-pf-response.php#L82
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L739
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L513
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L363
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L359
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-pf-frame.php#L391
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-pf-response.php#L82
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L739
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L513
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L363
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L359
- https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-pf-frame.php#L391
- https://github.com/wpcodefactory/woo-product-filter
- https://plugins.trac.wordpress.org/changeset/3757178/woo-product-filter/trunk/classes/class-woobewoo-pf-response.php
More woobewoo vulnerabilities
- TI-2024-29507 WordPress WBW Product Table PRO plugin <= 1.9.4 - Unauthenticated Arbitrary SQL Query Execution vulnerability CVSS 3.1CRITICAL 10.0
- TI-2024-05907 Product Table by WBW <= 2.0.1 - Unauthenticated Remote Code Execution CVSS 3.1CRITICAL 9.8
- TI-2024-12278 Product Table by WBW <= 2.1.2 - Unuthenticated SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2025-22329 WordPress WBW Product Table PRO plugin <= 2.2.6 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
- TI-2025-07702 Product Filter by WBW <= 2.9.7 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
- TI-2025-02035 Product Filter by WBW <= 2.7.9 - Unauthenticated SQL Injection via filtersDataBackend Parameter CVSS 3.1HIGH 7.5
Sources
- CVE-2026-88942 · CVE Program
- CVE-2026-88942 · NVD
- FIRST EPSS
- GHSA-gcmh-9x86-4rvc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences