CVE-2026-4239CWE-1321CWE-94

Lagom WHMCS Template Datatables prototype pollution

Medium · published March 16, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
32.9
In the wild
Unconfirmed
What it is

A vulnerability was found in Lagom WHMCS Template up to 2.3.7. Impacted is an unknown function of the component Datatables. The manipulation results in improperly controlled modification of object prototype attributes. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00398 · 32.9th percentile
Weaknesses
CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-03-16T13:02Z
EPSS history
Timeline
  • 16 MAR 13:02Z
    Lagom WHMCS Template Datatables prototype pollution
    cvelistv5