Lagom WHMCS Template 2.4.2 Datatables Resource Exhaustion Vulnerability (CVE-2026-6601)

Vulnerability Overview Vulnerability Name: Lagom WHMCS Template up to 2.4.2 Datatables resource consumption Vulnerability ID: CVE-2026-6601 Vulnerability Type: Resource consumption vulnerability Description: A resource consumption vulnerability was discovered in Lagom WHMCS Template version 2.4.2. The vulnerability affects an unknown function of the Datatables component. By manipulating input, an attacker can cause resource exhaustion, ultimately leading to depletion of available resources. This vulnerability can be exploited remotely, and public exploit code already exists. Impact Scope Affected Product: Lagom WHMCS Template Affected Versions: 2.4.0, 2.4.1, 2.4.2 CPE Identifiers: - CPE 2.3: - CPE 2.2: Remediation Recommended Measures: No known mitigations at present. It is recommended to replace the affected object or use an alternative product. Patch Status: Undefined Additional Information CVSS Scores: - CVSSv3: 4.3 (Base Score), 3.9 (Temporal Score) - CVSSv2: 5.0 (Base Score), 5.0 (Temporal Score) Attack Vector: Remote Attack Complexity: Low Authentication Requirement: None Confidentiality Impact: None Integrity Impact: None Availability Impact: High Timeline 2026-04-19: Advisory published 2026-04-19: VulDB entry created 2026-04-19: VulDB entry last updated Sources Advisory: GitHub CVE: CVE-2026-6601 GCVE: GCVE-2026-6601 Submission Information Submitter: s4ntyy Submission Time: 2026-04-19 04:02 PM Discussion Comments: No comments yet; language is English. Summary A resource consumption vulnerability exists in Lagom WHMCS Template version 2.4.2, which may lead to resource exhaustion. This vulnerability can be exploited remotely, and public exploit code is already available. No known mitigations exist at present; it is recommended to replace the affected object or use an alternative product.

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Lagom WHMCS Template 2.4.2 Datatables Resource Exhaustion Vulnerability (CVE-2026-6601)