CVE-2025-41347 — CRITICAL (9.8)

Vulnerability Description

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'.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Iest	Winplus	24.11.27

Related Weaknesses (CWE)

CWE-434

References

https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xThird Party Advisory

FAQ

What is CVE-2025-41347?

CVE-2025-41347 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 '/Win...

How severe is CVE-2025-41347?

CVE-2025-41347 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-41347?

Check the references section above for vendor advisories and patch information. Affected products include: Iest Winplus.