{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16020", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-07-17T06:43:30.341Z", "datePublished": "2026-10-28T08:41:50.528Z", "dateUpdated": "2026-10-28T08:41:50.528Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-10-28T08:41:50.528Z"}, "title": "Stored XSS Fazile BACAK's DefterAsist Financial Advisor Platform", "datePublic": "2026-10-28T08:38:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "CAPEC-592 Stored XSS"}]}], "affected": [{"vendor": "Fazile BACAK", "product": "DefterAsist Financial Advisor Platform", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "2026-10-27", "versionType": "date"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fazile BACAK DefterAsist Financial Advisor Platform allows Stored XSS.\n\nThis issue affects DefterAsist Financial Advisor Platform: through 2026-10-27.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fazile BACAK DefterAsist Financial Advisor Platform allows Stored XSS.<p>This issue affects DefterAsist Financial Advisor Platform: through 2026-10-27.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1420", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 5.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}}], "credits": [{"lang": "en", "value": "Ali Kostak", "type": "finder"}], "source": {"defect": ["TR-26-1420"], "advisory": "TR-26-1420", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "DefterAsist Financial Advisor Platform", "vendor": "Fazile BACAK", "versions": [{"lessThanOrEqual": "2026-10-27", "status": "affected", "version": "0", "versionType": "date"}]}], "source": "iletisim@usom.gov.tr"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fazile BACAK DefterAsist Financial Advisor Platform allows Stored XSS.\n\nThis issue affects DefterAsist Financial Advisor Platform: through 2026-10-27."}], "id": "CVE-2026-16020", "lastModified": "2026-10-28T14:36:39.033", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "iletisim@usom.gov.tr", "type": "Primary"}]}, "published": "2026-10-28T09:17:06.280", "references": [{"source": "iletisim@usom.gov.tr", "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1420"}], "sourceIdentifier": "iletisim@usom.gov.tr", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "iletisim@usom.gov.tr", "type": "Primary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026-10-27]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "DefterAsist Financial Advisor Platform", "source": "cna", "vendor": "Fazile BACAK"}, "product": "defterasist_financial_advisor_platform", "vendor": "fazile_bacak"}], "created": "2026-10-28T10:30:18.697682+00:00", "updated": "2026-10-28T21:47:08.225563+00:00", "vendors": ["fazile_bacak", "fazile_bacak$PRODUCT$defterasist_financial_advisor_platform"]}