Low 3.5Published Mar 16, 2026

CVE-2026-4239Lagom WHMCS Template Datatables prototype pollution

Updated under an hour ago (Oct 25, 2026, 8:10 PM ET)

Does this affect you?

It affects Lagom WHMCS Template. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Lagom WHMCS Template

Exploited in the last 30 days

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.

CVSS: 3.5 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
Weakness (CWE): CWE-1321, CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Mar 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Lagom WHMCS Template lagom:whmcs_template (from the name)	2.3.0; 2.3.1; 2.3.2; 2.3.3; 2.3.4; 2.3.5; 2.3.6; 2.3.7	CNA record

References

https://vuldb.com/?id.351181vdb-entry
https://vuldb.com/?ctiid.351181signature, permissions-required
https://vuldb.com/?submit.771350third-party-advisory
https://github.com/devsamuelsantiago/lagom-prototype-pollution-poc/exploit
https://github.com/devsamuelsantiago/lagom-prototype-pollution-poc/blob/main/lagom-prototype-pollution-poc.jsexploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.