CVE-2025-34076

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.

How to fix CVE-2025-34076

To remediate CVE-2025-34076, upgrade the affected package to a fixed version below.

• —upgrade to 1.2.11 or later

Is CVE-2025-34076 being exploited?

Moderate — EPSS is 48.8%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (1)

• from 0, < 1.2.11

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-34076
• WEBgithub.com/microweber/microweber
• WEBgithub.com/microweber/microweber/commit/572bdc36b5b47923790016f6b961c8df53226855
• WEBgithub.com/microweber/microweber/commit/98d025467128ecc24195dcb56c533febc3c91af6