Auth bypass in Iest Winplus
CVE-2025-41346
Faulty authorization control in software WinPlus v24.11.27 by Informática del Este that allows another user to be impersonated simply by knowing their 'numerical ID', meaning that an attacker could compromise another user's account, thereby affecting the confidentiality, integrity, and availability of the data stored in the application.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (22.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Iest Winplus — versions 24.11.27
- Informatica Del Este Winplus — versions 24.11.27
Weakness classification (CWE)
References
- www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-winp… (Third Party Advisory, patch)
Frequently asked questions
- What is CVE-2025-41346?
- CVE-2025-41346 is a critical-severity vulnerability in Iest Winplus, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2025-11-18.
- How severe is CVE-2025-41346?
- Critical severity. CVSS v3 base score is 9.8 out of 10.