Description

An authenticated local file inclusion vulnerability exists in Microweber CMS versions <= 1.2.11 through misuse of the backup management API. Authenticated users can abuse the /api/BackupV2/upload and /api/BackupV2/download endpoints to read arbitrary files from the underlying filesystem. By specifying an absolute file path in the src parameter of the upload request, the server may relocate or delete the target file depending on the web service user’s privileges. The corresponding download endpoint can then be used to retrieve the file contents, effectively enabling local file disclosure. This behavior stems from insufficient validation of user-supplied paths and inadequate restrictions on file access and backup logic.

Classification

CVE ID: CVE-2025-34076

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Affected Products

Vendor: Microweber Ltd.

Product: CMS

References

https://nvd.nist.gov/vuln/detail/CVE-2025-34076
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/gather/microweber_lfi.rb
https://github.com/microweber/microweber
https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b
https://github.com/microweber/microweber/commit/98d025467128ecc24195dcb56c533febc3c91af6
https://github.com/microweber/microweber/commit/572bdc36b5b47923790016f6b961c8df53226855
https://vulncheck.com/advisories/microweber-cms-lfi

Timeline