Vulnerability · Published Nov 18, 2025 · Assigned by INCIBE
CVE-2025-41347Stored Cross-Site Scripting (XSS) in WinPlus by Informática del Este
High 8.7
In plain English
A high-severity unrestricted file upload in WinPlus from Informatica del Este. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.4%top 69.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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'.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Informatica del Este | WinPlus | 24.11.27 |
Weakness: CWE-434 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N