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8.1
Apache HTTP Server: Unauthenticated File Writing in Unused API Endpoint
CVE-2025-41756
Summary
An attacker can write arbitrary files on the system without a password, which could allow them to delete or modify important system files. This is a concern because it could lead to a complete system compromise. To mitigate this risk, update or remove the unused API endpoint.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| mbs-solutions | universal_bacnet_router_firmware | <= 6.0.1.0 | – |
Original title
A low-privileged remote attacker can exploit the ubr-editfile method in wwwubr.cgi, an undocumented and unused API endpoint to write arbitrary files on the system.
Original description
A low-privileged remote attacker can exploit the ubr-editfile method in wwwubr.cgi, an undocumented and unused API endpoint to write arbitrary files on the system.
nvd CVSS3.1
8.1
Vulnerability type
CWE-1242
Published: 9 Mar 2026 · Updated: 13 Mar 2026 · First seen: 9 Mar 2026