CVE-2024-12878

Custom Block Builder – Lazy Blocks < 3.8.3 - Reflected XSS

High · published February 26, 2025

CVSS v3.1
7.1
EPSS
1%
Percentile
48.9
In the wild
Unconfirmed
What it is

The Custom Block Builder WordPress plugin before 3.8.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00617 · 48.9th percentile
Published
2025-02-26T06:00Z
EPSS history
Timeline
  • 26 FEB 06:00Z
    Custom Block Builder – Lazy Blocks < 3.8.3 - Reflected XSS
    cvelistv5