{"id":"CVE-2026-4239","state":"PUBLISHED","title":"Lagom WHMCS Template Datatables prototype pollution","description":"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.","publishedAt":"2026-03-16T13:02:08.856Z","updatedAt":"2026-03-16T14:42:22.402Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["Lagom WHMCS Template"],"affected":[{"vendor":"Lagom","product":"WHMCS Template","versions":[{"version":"2.3.0","status":"affected"},{"version":"2.3.1","status":"affected"},{"version":"2.3.2","status":"affected"},{"version":"2.3.3","status":"affected"},{"version":"2.3.4","status":"affected"},{"version":"2.3.5","status":"affected"},{"version":"2.3.6","status":"affected"},{"version":"2.3.7","status":"affected"}],"modules":["Datatables"]}],"references":["https://vuldb.com/?id.351181","https://vuldb.com/?ctiid.351181","https://vuldb.com/?submit.771350","https://github.com/devsamuelsantiago/lagom-prototype-pollution-poc/","https://github.com/devsamuelsantiago/lagom-prototype-pollution-poc/blob/main/lagom-prototype-pollution-poc.js"],"weaknesses":["CWE-1321","CWE-94"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/4xxx/CVE-2026-4239.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4239","state":"PUBLISHED","datePublished":"2026-03-16T13:02:08.856Z","dateUpdated":"2026-03-16T14:42:22.402Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-15T20:37:03.899Z"},"containers":{"cna":{"title":"Lagom WHMCS Template Datatables prototype pollution","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Lagom","product":"WHMCS Template","versions":[{"version":"2.3.0","status":"affected"},{"version":"2.3.1","status":"affected"},{"version":"2.3.2","status":"affected"},{"version":"2.3.3","status":"affected"},{"version":"2.3.4","status":"affected"},{"version":"2.3.5","status":"affected"},{"version":"2.3.6","status":"affected"},{"version":"2.3.7","status":"affected"}],"modules":["Datatables"]}],"references":[{"url":"https://vuldb.com/?id.351181","name":"VDB-351181 | Lagom WHMCS Template Datatables prototype pollution","tags":["vdb-entry"]},{"url":"https://vuldb.com/?ctiid.351181","name":"VDB-351181 | CTI Indicators (IOB, IOC, TTP)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.771350","name":"Submit #771350 | Lagom Lagom WHMCS Template * Prototype Pollution","tags":["third-party-advisory"]},{"url":"https://github.com/devsamuelsantiago/lagom-prototype-pollution-poc/","tags":["exploit"]},{"url":"https://github.com/devsamuelsantiago/lagom-prototype-pollution-poc/blob/main/lagom-prototype-pollution-poc.js","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.5,"vectorString":"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","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.5,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":4,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1321","type":"CWE","lang":"en","description":"Improperly Controlled Modification of Object Prototype Attributes"}]},{"descriptions":[{"cweId":"CWE-94","type":"CWE","lang":"en","description":"Code Injection"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-03-16T13:02:08.856Z"},"timeline":[{"time":"2026-03-15T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-15T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-15T21:43:11.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"s4nnty (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-16T14:42:17.217378Z","id":"CVE-2026-4239","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-16T14:42:22.402Z"}}]}}}