High · 8.8 CVE-2025-56704 EUVD-2025-202289GHSA-pvcf-257h-r9p4

LeptonCMS version 7.3.0 contains an arbitrary file upload vulnerability, which is caused by the lack of proper validation for uploaded file…

Published Dec 9, 2025 · Updated Jul 5, 2026 · Assigned by mitre

Description

LeptonCMS version 7.3.0 contains an arbitrary file upload vulnerability, which is caused by the lack of proper validation for uploaded files. An authenticated attacker can exploit this vulnerability by uploading a specially crafted ZIP/PHP file to execute arbitrary code.

References

https://github.com/Kayi626/Vulns/blob/UserAccount/LEPTON_CMS_7.3.0_File_Upload_A.pdf
https://github.com/Kayi626/Vulns/blob/UserAccount/LEPTON_CMS_7.3.0_File_Upload_B.pdf
https://github.com/Kayi626/Vulns/blob/UserAccount/LEPTON_CMS_7.3.0_File_Upload_C.pdf