Vulnerability · Published Jul 2, 2025 · Assigned by VulnCheck

CVE-2025-34076Microweber CMS Authenticated Local File Inclusion via Backup API

Medium 6.1

In plain English

A medium-severity path traversal in CMS from Microweber Ltd.. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit. Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.1Medium

Exploit odds (30 days)2.3%top 16.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Metasploit

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	microweber/microweber	1.2.11	GHSA-j64v-xh5w-8hqj

Affected products (as reported)

Vendor	Product	Versions
Microweber Ltd.	CMS	0 – through 1.2.11

Weakness: CWE-22 · 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

In plain English

Official description

Affected packages & fixed versions

Affected products (as reported)

References