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CVE-2026-6601

Lagom WHMCS Template Datatables resource consumption

MEDIUM
4.3
CVSS Score
Published: April 20, 2026 at 03:30 AM UTC
Updated: October 26, 2026 at 10:10 PM UTC
1 product affected across 1 vendorWHMCS Template

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB Entry
Source: cverecord
https://vuldb.com/vuln/358236
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/358236/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/791943
Exploit
Source: cverecord
https://github.com/devsamuelsantiago/lagom-whmcs-dos-poc

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400CWE-404

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