What’s Vulnerable › Vulnerabilities

CVE-2026-6601: Lagom WHMCS Template Datatables resource consumption

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-20 · updated 2026-10-26
• Weakness: CWE-400

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

• Lagom WHMCS Template: 2.4.0, 2.4.1, 2.4.2

References

• https://github.com/devsamuelsantiago/lagom-whmcs-dos-poc
• https://vuldb.com/submit/791943
• https://vuldb.com/vuln/358236
• https://vuldb.com/vuln/358236/cti

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