Medium severity4.3NVD Advisory· Published Apr 20, 2026· Updated Apr 29, 2026

CVE-2026-6601

Description

A vulnerability has been found in Lagom WHMCS Template up to 2.4.2. This impacts an unknown function of the component Datatables. The manipulation leads to resource consumption. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Devsamuelsantiago/Lagom Whmcs Dos Pocreferences

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

4.3/ 10

CVSS v42.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS

Probability of exploitation in the next 30 days.

0.04%

VYPR risk score

Composite of severity, exploitation, and reach.

0.28low

cvss	0.280
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-400
Uncontrolled Resource Consumption
CWE-404
Improper Resource Shutdown or Release

CVE ID

CVE-2026-6601

Source code

github.com/devsamuelsantiago/lagom-whmcs-dos-poc

Credits

S(
s4nnty (VulDB User)
reporter
VC
VulDB CNA Team
coordinator