Płatnik performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process and authenticate as an arbitrary user.



This issue was fixed in metric 242 in version 10.02.002.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Zakład Ubezpieczeń Społecznych Płatnik unaffected
Version Status Constraints
0 affected ≤ 10.02.002

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
Zak Ad Ubezpiecze Spo Ecznych Subscribe
P Atnik Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert.pl/posts/2026/10/CVE-2026-110970 cve-icon cve-icon
https://www.zus.pl/firmy/program-platnik/o-programie-platnik cve-icon cve-icon
History

Fri, 30 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
Description Płatnik performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process and authenticate as an arbitrary user. This issue was fixed in metric 242 in version 10.02.002.
Title Use of Client-Side Authentication in Płatnik
First Time appeared Zak Ad Ubezpiecze Spo Ecznych
Zak Ad Ubezpiecze Spo Ecznych p Atnik
Weaknesses CWE-603
CPEs cpe:2.3:a:zak_ad_ubezpiecze_spo_ecznych:p_atnik:*:*:*:*:*:*:*:*
Vendors & Products Zak Ad Ubezpiecze Spo Ecznych
Zak Ad Ubezpiecze Spo Ecznych p Atnik
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-10-30T15:26:20.225Z

Reserved: 2026-10-15T10:24:54.756Z

Link: CVE-2026-110972

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-30T12:16:34.803

Modified: 2026-10-30T12:16:34.803

Link: CVE-2026-110972

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T13:30:12Z

Weaknesses