CVE-2025-41349: Informatica del Este WinPlus · XSS or 'Cross-site Scripting'
Affects Informatica del Este WinPlusSource CVE Database V5
Not known to be exploited · CVSS 5.1 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Informatica del Este WinPlus | Affected
| Fixed in– |
AI-suggested
Organizations should immediately audit their use of WinPlus version 24.11.27 and restrict access to the vulnerable endpoint where possible. Implement strict server-side input validation and output encoding for the 'descripcion' parameter to neutralize malicious scripts. Deploy Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers. Monitor web server logs for unusual POST requests targeting '/WinplusPortal/ws/sWinplus.svc/json/savesolpla_post' and anomalous user behavior indicative of session hijacking. Enforce multi-factor authentication (MFA) to reduce the impact of stolen session cookies. Educate users about the risks of interacting with suspicious links or content within the application. If possible, isolate WinPlus instances in segmented network zones to limit lateral movement. Engage with Informatica del Este for official patches or updates and apply them promptly once available. Consider deploying Web Application Firewalls (WAF) with custom rules to detect and block XSS payloads targeting this endpoint. Regularly review and update incident response plans to include scenarios involving XSS exploitation.
Description
Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist of an stored XSS of a stored XSS due to a lack of proper validation of user input by sending a POST request using the 'descripcion' parameter in '/WinplusPortal/ws/sWinplus.svc/json/savesolpla_post'. This vulnerability could allow a remote user to send a specially crafted query to an authenticated user and steal their cookie session details.