{"id":"CVE-2026-57916","state":"PUBLISHED","title":"Arbitrary Path Execution via CPS URI in proCertum SmartSign","description":"proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened).\n\nThis issue was fixed in version 9.4.3.90.","publishedAt":"2026-07-27T10:29:30.612Z","updatedAt":"2026-07-27T14:41:43.080Z","severity":{"score":4.6,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","source":"CERT-PL"},"assigner":"CERT-PL","products":["Asseco proCertum SmartSign"],"affected":[{"vendor":"Asseco","product":"proCertum SmartSign","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"9.4.3.90","versionType":"semver"}]}],"references":["https://cert.pl/posts/2026/07/CVE-2026-57916","https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign/"],"weaknesses":["CWE-73"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57916.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57916","state":"PUBLISHED","datePublished":"2026-07-27T10:29:30.612Z","dateUpdated":"2026-07-27T14:41:43.080Z","assignerShortName":"CERT-PL","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateReserved":"2026-06-26T10:47:10.593Z"},"containers":{"cna":{"title":"Arbitrary Path Execution via CPS URI in proCertum SmartSign","descriptions":[{"lang":"en","value":"proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened).\n\nThis issue was fixed in version 9.4.3.90."}],"affected":[{"vendor":"Asseco","product":"proCertum SmartSign","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"9.4.3.90","versionType":"semver"}]}],"references":[{"url":"https://cert.pl/posts/2026/07/CVE-2026-57916","tags":["third-party-advisory"]},{"url":"https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign/","tags":["product"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","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":"MEDIUM","baseScore":4.6,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-73","lang":"en","description":"CWE-73 External Control of File Name or Path","type":"CWE"}]}],"providerMetadata":{"shortName":"CERT-PL","orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateUpdated":"2026-07-27T10:29:30.612Z"},"impacts":[{"capecId":"CAPEC-76","descriptions":[{"lang":"en","value":"CAPEC-76 Manipulating Web Input to File System Calls"}]}],"credits":[{"lang":"en","value":"Mariusz Maik","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-27T14:41:35.655566Z","id":"CVE-2026-57916","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-27T14:41:43.080Z"}}]}}}