{"id":"CVE-2026-110972","state":"PUBLISHED","title":"Use of Client-Side Authentication in Płatnik","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.\n\n\n\nThis issue was fixed in metric 242 in version 10.02.002.","publishedAt":"2026-10-30T11:56:49.582Z","updatedAt":"2026-10-30T15:26:20.225Z","severity":{"score":8.6,"label":"High","version":"4.0","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","source":"CERT-PL"},"assigner":"CERT-PL","products":["Zakład Ubezpieczeń Społecznych Płatnik"],"affected":[{"vendor":"Zakład Ubezpieczeń Społecznych","product":"Płatnik","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"10.02.002","changes":[{"at":"metric 242","status":"unaffected"}],"versionType":"custom"}]}],"references":["https://cert.pl/posts/2026/10/CVE-2026-110970","https://www.zus.pl/firmy/program-platnik/o-programie-platnik"],"weaknesses":["CWE-603"],"ingestedAt":"2026-10-30T15:32:06.618Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/110xxx/CVE-2026-110972.json","commit":"ca75847a56547380f49cc3a8584f20ad5856d62a","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110972","state":"PUBLISHED","datePublished":"2026-10-30T11:56:49.582Z","dateUpdated":"2026-10-30T15:26:20.225Z","assignerShortName":"CERT-PL","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateReserved":"2026-10-15T10:24:54.756Z"},"containers":{"cna":{"title":"Use of Client-Side Authentication in Płatnik","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."}],"affected":[{"vendor":"Zakład Ubezpieczeń Społecznych","product":"Płatnik","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"10.02.002","changes":[{"at":"metric 242","status":"unaffected"}],"versionType":"custom"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-603","lang":"en","description":"CWE-603 Use of Client-Side authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"CERT-PL","orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateUpdated":"2026-10-30T11:57:03.631Z"},"datePublic":"2026-10-30T00:00:00.000Z","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"}]}]}],"credits":[{"lang":"en","value":"Wojciech Giełda","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T15:26:20.225Z"}}]}}}