CVE-2025-41347: Unlimited upload vulnerability for dangerous file types in WinPlus v24.11.27 from Informática del Este. This…
CVE-2025-41347 · Severity: critical · CVSS 9.8 · Published 2025-11-18
Unlimited upload vulnerability for dangerous file types in WinPlus v24.11.27 from Informática del Este. This vulnerability allows an attacker to upload a 'webshell' by sending a POST request to '/WinplusPortal/ws/sWinplus.svc/json/uploadfile'.
No. Junglewise Threat Intelligence has no report of CVE-2025-41347 being exploited in the wild.
How severe is CVE-2025-41347?
Critical severity, with a CVSS score of 9.8, published 18 November 2025.
Which products and versions are affected?
Iest Winplus. The advisory does not name versions.
Is there a fix for CVE-2025-41347?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-41347?
Check whether you run Iest Winplus. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.