{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86405", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-09-07T11:25:25.549Z", "datePublished": "2026-10-09T12:52:43.902Z", "dateUpdated": "2026-10-09T12:52:43.902Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-10-09T12:52:43.902Z"}, "title": "Payment Validation Bypass in Sipay Electronic Money's SanalPos PrestaShop", "datePublic": "2026-10-09T12:47:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-347", "description": "CWE-347 Improper verification of cryptographic signature", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-475", "descriptions": [{"lang": "en", "value": "CAPEC-475 Signature Spoofing by Improper Validation"}]}], "affected": [{"vendor": "Sipay Electronic Money and Payment Services Inc.", "product": "PrestaShop Virtual POS Module", "versions": [{"status": "affected", "version": "26.8.1", "lessThan": "26.9.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. PrestaShop Virtual POS Module allows Signature Spoofing by Improper Validation.\n\nThis issue affects PrestaShop Virtual POS Module: from 26.8.1 before 26.9.1.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. PrestaShop Virtual POS Module allows Signature Spoofing by Improper Validation.<p>This issue affects PrestaShop Virtual POS Module: from 26.8.1 before 26.9.1.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1287", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Yasin SUER", "type": "finder"}], "source": {"defect": ["TR-26-1287"], "advisory": "TR-26-1287", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PrestaShop Virtual POS Module", "vendor": "Sipay Electronic Money and Payment Services Inc.", "versions": [{"lessThan": "26.9.1", "status": "affected", "version": "26.8.1", "versionType": "semver"}]}], "source": "iletisim@usom.gov.tr"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper verification of cryptographic signature vulnerability in Sipay Electronic Money and Payment Services Inc. PrestaShop Virtual POS Module allows Signature Spoofing by Improper Validation.\n\nThis issue affects PrestaShop Virtual POS Module: from 26.8.1 before 26.9.1."}], "id": "CVE-2026-86405", "lastModified": "2026-10-09T13:21:13.267", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "iletisim@usom.gov.tr", "type": "Primary"}]}, "published": "2026-10-09T13:17:11.100", "references": [{"source": "iletisim@usom.gov.tr", "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1287"}], "sourceIdentifier": "iletisim@usom.gov.tr", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "iletisim@usom.gov.tr", "type": "Primary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[26.8.1,26.9.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "PrestaShop Virtual POS Module", "source": "cna", "vendor": "Sipay Electronic Money and Payment Services Inc."}, "product": "prestashop_virtual_pos_module", "vendor": "sipay_electronic_money_and_payment_services"}], "created": "2026-10-09T15:00:08.300075+00:00", "updated": "2026-10-11T12:27:28.145225+00:00", "vendors": ["sipay_electronic_money_and_payment_services", "sipay_electronic_money_and_payment_services$PRODUCT$prestashop_virtual_pos_module"]}