CVE-2026-39575CWE-79

WordPress Custom Query Blocks plugin <= 5.5.0 - Cross Site Scripting (XSS) vulnerability

Medium · published April 8, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.4
In the wild
Unconfirmed
What it is

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ronald Huereca Custom Query Blocks post-type-archive-mapping allows DOM-Based XSS.This issue affects Custom Query Blocks: from n/a through <= 5.5.0.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00224 · 12.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-08T08:30Z
EPSS history
Timeline
  • 08 APR 08:30Z
    WordPress Custom Query Blocks plugin <= 5.5.0 - Cross Site Scripting (XSS) vulnerability
    cvelistv5