{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110972","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","state":"PUBLISHED","assignerShortName":"CERT-PL","dateReserved":"2026-10-15T10:24:54.756Z","datePublished":"2026-10-30T11:56:49.582Z","dateUpdated":"2026-10-30T15:26:20.225Z"},"containers":{"cna":{"providerMetadata":{"orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","shortName":"CERT-PL","dateUpdated":"2026-10-30T11:57:03.631Z"},"title":"Use of Client-Side Authentication in Płatnik","datePublic":"2026-10-30T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-603","description":"CWE-603 Use of Client-Side authentication","type":"CWE"}]}],"affected":[{"vendor":"Zakład Ubezpieczeń Społecznych","product":"Płatnik","versions":[{"status":"affected","version":"0","lessThanOrEqual":"10.02.002","changes":[{"at":"metric 242","status":"unaffected"}],"versionType":"custom"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:zak_ad_ubezpiecze_spo_ecznych:p_atnik:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndIncluding":"10.02.002"}]}]}],"descriptions":[{"lang":"en","value":"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.\n\n\n\nThis issue was fixed in metric 242 in version 10.02.002.","supportingMedia":[{"type":"text/html","base64":false,"value":"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.<br><div><br></div><div>This issue was fixed<span>&nbsp;</span><span>in metric 242 in version 10.02.002.</span></div>"}]}],"references":[{"url":"https://cert.pl/posts/2026/10/CVE-2026-110970","tags":["third-party-advisory"]},{"url":"https://www.zus.pl/firmy/program-platnik/o-programie-platnik","tags":["product"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.6,"vectorString":"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"}}],"credits":[{"lang":"en","value":"Wojciech Giełda","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T15:26:06.783259Z","id":"CVE-2026-110972","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-30T15:26:20.225Z"}}]}}