EUVD-2026-71444
GHSA-ppjw-q33g-rf64
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description explicitly requires Admin role, warranting PR:H over the reported PR:L; all other metrics retained from provided vector.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
An arbitrary file upload vulnerability in /cgi-bin/ugwupload.cgi of MBS-Solutions X-Serie Gateway firmware V6_00_05 allows a remote authenticated user with Admin role to upload files with arbitrary content to hardcoded paths.
AnalysisAI
Arbitrary file upload via the /cgi-bin/ugwupload.cgi endpoint in MBS-Solutions X-Serie Gateway firmware V6_00_05 permits an authenticated administrator to write files of arbitrary content to hardcoded filesystem paths. The CWE-434 flaw can be used to plant backdoors, overwrite critical device configuration, or corrupt the operating environment, potentially resulting in full device compromise. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid account holding the Admin role on the MBS-Solutions X-Serie Gateway; unauthenticated attackers cannot directly exploit this vulnerability. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 8.8 vector assigns PR:L (low privilege), but the CVE description explicitly states exploitation requires the Admin role - a discrepancy that suggests PR should be H, reducing the realistic base score to approximately 7.2. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No specific patched firmware version is identified in available data - fix status is unconfirmed at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all MBS-Solutions X-Serie Gateway devices and document firmware versions; review administrator account access logs for suspicious upload attempts to /cgi-bin/ugwupload.cgi. …
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Same technique File Upload
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External POC / Exploit Code
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