Product Filter for WooCommerce by WBW <= 3.4.6 - Reflected Cross-Site Scripting via 'wpf_fid' JSON Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-88942
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-31 07:16:37 UTC
Updated2026-10-31 07:16:37 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Woobewoo Product Filter For WooCommerce By WBW affected 3.4.6 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/93f80f84-68b1-4c11-8bc8-19b78... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/clas... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3757178/woo-product-filter/trunk/classes/class-woob... [email protected] plugins.trac.wordpress.org
github.com/wpcodefactory/woo-product-filter [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: crow (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-10T15:17:35.000ZVendor Notified
CNA2026-10-30T18:20:44.000ZDisclosed

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