CVE-2021-28428

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:-:*:*:*:*:*:*", "matchCriteriaId": "0837AB3F-932A-464D-B078-041C1D167681", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha:*:*:*:*:*:*", "matchCriteriaId": "819778BF-D6F0-41DE-ADF2-3BB80E05DD93", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha2:*:*:*:*:*:*", "matchCriteriaId": "BDF18A37-08AC-4501-8C15-151DE7B44DED", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha3:*:*:*:*:*:*", "matchCriteriaId": "E6F3AB6F-BD6E-4F8C-952F-AB55E11D7D23", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha4:*:*:*:*:*:*", "matchCriteriaId": "C1817B54-40E9-4150-8A24-2023FD19BB43", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha5:*:*:*:*:*:*", "matchCriteriaId": "A6585D37-41CF-436A-A4AA-F91AE092D288", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha6:*:*:*:*:*:*", "matchCriteriaId": "E496572C-0A79-4524-B544-E864FBFEDFD8", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha7:*:*:*:*:*:*", "matchCriteriaId": "A7117177-3CD2-4BE9-982A-FBFEF60A7C23", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha8:*:*:*:*:*:*", "matchCriteriaId": "EB1E6057-C7F5-4D4F-B112-437C801DCCF4", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*:*:*", "matchCriteriaId": "320BB8EF-D310-4420-9EA9-CA06DFA03DE5", "vulnerable": true}, {"criteria": "cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta2:*:*:*:*:*:*", "matchCriteriaId": "9840814D-4A55-468B-8F55-EEEE82D7EA29", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "File upload vulnerability in HorizontCMS before 1.0.0-beta.3 via uploading a .htaccess and *.hello files using the Media Files upload functionality. The original file upload vulnerability (CVE-2020-27387) was remediated by restricting the PHP extensions; however, we confirmed that the filter was bypassed via uploading an arbitrary .htaccess and *.hello files in order to execute PHP code to gain RCE."}, {"lang": "es", "value": "Una vulnerabilidad en la carga de archivos en HorizontCMS versiones anteriores a 1.0.0-beta.3, por medio de una carga de archivos .htaccess y *.hello usando la funcionalidad Media Files upload. La vulnerabilidad original en la carga de archivos (CVE-2020-27387) fue corregida al restringir las Extensions de PHP; sin embargo, confirmamos que el filtro fue evitado por medio de la carga de un archivo arbitrario .htaccess y *.hello para ejecutar c\u00f3digo PHP y conseguir un RCE"}], "id": "CVE-2021-28428", "lastModified": "2026-06-17T03:46:20.220", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-04-05T16:15:11.880", "references": [{"source": "cve@mitre.org", "tags": ["Product"], "url": "https://github.com/ttimot24/HorizontCMS"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ttimot24/HorizontCMS/commit/9c4d6827cbe96decec6834d53660e14ab2bf8838"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://github.com/ttimot24/HorizontCMS"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ttimot24/HorizontCMS/commit/9c4d6827cbe96decec6834d53660e14ab2bf8838"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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