CVE-2026-88942

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

MEDIUM
6.1
CVSS Score
Published: October 31, 2026 at 06:44 AM UTC
Updated: November 2, 2026 at 04:19 PM UTC
1 product affected across 1 vendorProduct Filter

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

90%
v ≤ 3.4.6

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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