{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103522", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-09-30T19:03:43.339Z", "datePublished": "2026-10-12T14:53:34.695Z", "dateUpdated": "2026-10-12T14:59:41.947Z"}, "containers": {"cna": {"title": "CVE-2026-103522", "descriptions": [{"lang": "en", "value": "In Thelia v2.6.0, the store banner upload feature performs insufficient filetype validation that relies exclusively on client\u2011supplied MIME types. An attacker with administrative access can upload a PHP file disguised as an image to bypass validation and achieve remote code execution on the underlying server."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Thelia", "product": "Thelia", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "2.6.0", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}, {"descriptions": [{"lang": "en", "description": "CWE-20 Improper Input Validation"}]}], "references": [{"url": "https://kb.cert.org/vuls/id/162329"}], "x_generator": {"engine": "VINCE 3.0.50", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-103522"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-12T14:53:34.695Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-434", "lang": "en", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-10-12T14:59:38.844888Z", "id": "CVE-2026-103522", "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": "2026-10-12T14:59:41.947Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-103522", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-12T14:59:38.844888Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-434", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-12T14:59:35.609Z"}}], "cna": {"title": "CVE-2026-103522", "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Thelia", "product": "Thelia", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "2.6.0"}]}], "references": [{"url": "https://kb.cert.org/vuls/id/162329"}], "x_generator": {"env": "prod", "engine": "VINCE 3.0.50", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-103522"}, "descriptions": [{"lang": "en", "value": "In Thelia v2.6.0, the store banner upload feature performs insufficient filetype validation that relies exclusively on client\u2011supplied MIME types. An attacker with administrative access can upload a PHP file disguised as an image to bypass validation and achieve remote code execution on the underlying server."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}, {"descriptions": [{"lang": "en", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-12T14:53:34.695Z"}}}, "cveMetadata": {"cveId": "CVE-2026-103522", "state": "PUBLISHED", "dateUpdated": "2026-10-12T14:59:41.947Z", "dateReserved": "2026-09-30T19:03:43.339Z", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "datePublished": "2026-10-12T14:53:34.695Z", "assignerShortName": "certcc"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "Thelia", "vendor": "Thelia", "versions": [{"lessThanOrEqual": "2.6.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Thelia v2.6.0, the store banner upload feature performs insufficient filetype validation that relies exclusively on client\u2011supplied MIME types. An attacker with administrative access can upload a PHP file disguised as an image to bypass validation and achieve remote code execution on the underlying server."}], "id": "CVE-2026-103522", "lastModified": "2026-10-12T15:17:05.690", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-103522", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-12T14:59:38.844888Z", "version": "2.0.3"}}]}, "published": "2026-10-12T15:17:05.690", "references": [{"source": "cret@cert.org", "url": "https://kb.cert.org/vuls/id/162329"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"created": "2026-10-12T17:00:14.570033+00:00", "title": "PHP Upload via Insufficient MIME Type Validation in Thelia 2.6.0", "updated": "2026-10-12T17:00:14.570039+00:00", "vendors": []}