Reflected Cross-Site Scripting Vulnerability in WordPress Filter Everything Plugin
CVE-2026-87869

6.1MEDIUM

Key Information:

Vendor: WordPress
Status: Filter Everything — WordPress & WooCommerce Filters
Vendor: CVE Published:; 10 October 2026

What is CVE-2026-87869?

The Filter Everything plugin for WordPress is susceptible to a Reflected Cross-Site Scripting vulnerability due to inadequate input sanitization and output escaping. This occurs within the flrt_elementor_load_more_anchor() function, which processes query parameters from the server's request URI. When these parameters are URL-decoded and reassembled, unescaped special characters become part of an HTML attribute. This allows unauthenticated attackers to execute arbitrary scripts on pages, potentially compromising user interactions through maliciously crafted links.

Affected Version(s)

Filter Everything — WordPress & WooCommerce Filters 0 <= 1.9.6

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...

https://plugins.trac.wordpress.org/browser/filter-everyth...

CVSS V3.1

Score:

6.1

Severity:

MEDIUM

Confidentiality:

Low

Integrity:

Low

Availability:

Low

Attack Vector:

Network

Attack Complexity:

Low

Privileges Required:

None

User Interaction:

Required

Scope:

Changed

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Oct 10, 2026
Vulnerability Reserved
Sep 9, 2026

Credit

Omar Elshopky (3l5h0pky)

CVE-2026-87869 Data

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