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Vulnerability record · CVE-2025-34076 · published 2 July 2025

CVE-2025-34076: Microweber path traversal vulnerability

Microweber · Microweber

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.

6.1 CVSS 4.0 Medium EPSS 2.1% · top 19.2% CWE-22 · Path traversal
6.1CVSS 4.0 base score
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 3 tagged exploit
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/microweber/microweber Product
https://github.com/microweber/microweber/commit/572bdc36b5b47923790016f6b961c8df53226855 Patch
https://github.com/microweber/microweber/commit/98d025467128ecc24195dcb56c533febc3c91af6 Patch
https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b ExploitThird Party Advisory
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/gather/microweber_lfi.rb Exploit
https://vulncheck.com/advisories/microweber-cms-lfi Third Party Advisory
https://huntr.com/bounties/09218d3f-1f6a-48ae-981c-85e86ad5ed8b ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-1877Microweber command injection vulnerabilityCommand Injection in GitHub repository microweber/microweber prior to 1.3.3.EPSS 1.8%9.8CVE-2022-2368Microweber authentication bypass by spoofing vulnerabilityAuthentication Bypass by Spoofing in GitHub repository microweber/microweber prior to 1.2.20.EPSS 1.2%9.8CVE-2022-0895Microweber vulnerabilityStatic Code Injection in GitHub repository microweber/microweber prior to 1.3.EPSS 1.7%9.8CVE-2020-23138Microweber unrestricted file upload vulnerabilityAn unrestricted file upload vulnerability was discovered in the Microweber 1.1.18 admin account page. An attacker can upload PHP code or any extensio…EPSS 1.3%8.8CVE-2023-49052Microweber unrestricted file upload vulnerabilityFile Upload vulnerability in Microweber v.2.0.4 allows a remote attacker to execute arbitrary code via a crafted script to the file upload function i…EPSS 2.4%8.8CVE-2023-2240Microweber improper privilege management vulnerabilityImproper Privilege Management in GitHub repository microweber/microweber prior to 1.3.4.EPSS 0.71%8.8CVE-2022-33012Microweber injection vulnerabilityMicroweber v1.2.15 was discovered to allow attackers to perform an account takeover via a host header injection attack.EPSS 1.4%8.8CVE-2021-36461Microweber unrestricted file upload vulnerabilityAn Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section by upload…EPSS 0.92%

Source: NIST National Vulnerability Database (record CVE-2025-34076), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.