Stored Cross-Site Scripting (XSS) in WinPlus by Informática del Este
Priority MEDIUM 40CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
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'.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00368 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Informatica del Este | WinPlus | 24.11.27 | — | No fix listed | CNA |
- WinPlus VendorInformatica del Este Affected 24.11.27 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:iest:winplus:24.11.27:*:*:*:-:*:*:* | 24.11.27 | Vulnerable | Informatica del Este |
- cpe:2.3:a:iest:winplus:24.11.27:*:*:*:-:*:*:* Versions 24.11.27 Vulnerable ·Informatica del Este
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-41347
- 2026-10-03 Alias added: GHSA-4xw5-95w2-c94q
References
More Informatica del Este Winplus vulnerabilities
- TI-2025-27536 Stored Cross-Site Scripting (XSS) in WinPlus by Informática del Este CVSS 4.0HIGH 8.7
- TI-2025-27534 Stored Cross-Site Scripting (XSS) in WinPlus by Informática del Este CVSS 4.0CRITICAL 9.3
- TI-2025-27538 Stored Cross-Site Scripting (XSS) in WinPlus by Informática del Este CVSS 4.0MEDIUM 5.1
- TI-2025-27537 Stored Cross-Site Scripting (XSS) in WinPlus by Informática del Este CVSS 4.0MEDIUM 5.1
Sources
- CVE-2025-41347 · CVE Program
- CVE-2025-41347 · NVD
- FIRST EPSS
- GHSA-4xw5-95w2-c94q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences