CVE-2021-34435

{"containers": {"cna": {"affected": [{"product": "Eclipse Theia", "vendor": "The Eclipse Foundation", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "0.3.9", "versionType": "custom"}, {"lessThanOrEqual": "1.8.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "In Eclipse Theia 0.3.9 to 1.8.1, the \"mini-browser\" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-942", "description": "CWE-942", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-09-01T17:20:09.000Z", "orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "shortName": "eclipse"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@eclipse.org", "ID": "CVE-2021-34435", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Eclipse Theia", "version": {"version_data": [{"version_affected": ">=", "version_value": "0.3.9"}, {"version_affected": "<=", "version_value": "1.8.1"}]}}]}, "vendor_name": "The Eclipse Foundation"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In Eclipse Theia 0.3.9 to 1.8.1, the \"mini-browser\" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-942"}]}]}, "references": {"reference_data": [{"name": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018", "refsource": "CONFIRM", "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:12:50.149Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018"}]}]}, "cveMetadata": {"assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "assignerShortName": "eclipse", "cveId": "CVE-2021-34435", "datePublished": "2021-09-01T17:20:09.000Z", "dateReserved": "2021-06-09T00:00:00.000Z", "dateUpdated": "2024-08-04T00:12:50.149Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "Eclipse Theia", "vendor": "The Eclipse Foundation", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "0.3.9", "versionType": "custom"}, {"lessThanOrEqual": "1.8.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "emo@eclipse.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*", "matchCriteriaId": "74B580B6-DE9F-4241-A8BE-886D9771C955", "versionEndIncluding": "1.8.1", "versionStartIncluding": "0.3.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Eclipse Theia 0.3.9 to 1.8.1, the \"mini-browser\" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.."}, {"lang": "es", "value": "En Eclipse Theia versiones 0.3.9 a 1.8.1, la extensi\u00f3n \"mini-browser\" permite al usuario previsualizar archivos HTML en un iframe dentro del IDE. Pero con la forma en que est\u00e1 hecha es posible para un archivo HTML previsualizado desencadenar un RCE. Esta explotaci\u00f3n s\u00f3lo ocurre si un usuario previsualiza un archivo malicioso"}], "id": "CVE-2021-34435", "lastModified": "2026-06-17T03:55:51.733", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-01T18:15:09.107", "references": [{"source": "emo@eclipse.org", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018"}], "sourceIdentifier": "emo@eclipse.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-942"}], "source": "emo@eclipse.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-346"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}