How severe is CVE-2025-41346?

CVE-2025-41346 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-41346 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-41346?

CVE-2025-41346 affects Iest Winplus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-41346?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-41346 have an EU (EUVD) identifier?

Yes. CVE-2025-41346 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197986.

When was CVE-2025-41346 published?

CVE-2025-41346 was published on 2025-11-18 and last updated on 2026-06-17.

CVE-2025-41346

CVE-2025-41346 is a critical-severity vulnerability in Iest Winplus with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-197986
Weakness: CWE-863
Affected product: Iest Winplus
Published: 2025-11-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-41346?: CVE-2025-41346 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-41346 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-41346?: CVE-2025-41346 affects Iest Winplus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-41346?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-41346 have an EU (EUVD) identifier?: Yes. CVE-2025-41346 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197986.
When was CVE-2025-41346 published?: CVE-2025-41346 was published on 2025-11-18 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-winplus-informatica-del-este

Affected products (1)

cpe:2.3:a:iest:winplus:24.11.27:*:*:*:-:*:*:*

More vulnerabilities in Iest Winplus

CVE-2025-41348 — Critical (CVSS 9.8): SQL injection vulnerability in WinPlus v24.11.27 by Informática del Este. This vulnerability allows an attacker…
CVE-2025-41347 — Critical (CVSS 9.8): Unlimited upload vulnerability for dangerous file types in WinPlus v24.11.27 from Informática del Este. This…
CVE-2025-41350 — Medium (CVSS 5.4): Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist of an…
CVE-2025-41349 — Medium (CVSS 5.4): Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist of an…

All CVEs affecting Iest Winplus →

Other CWE-863 (Incorrect Authorization) vulnerabilities

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CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
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Browse all CWE-863 (Incorrect Authorization) vulnerabilities →