CVE-2018-14655

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{"affected": [{"affectedData": [{"product": "keycloak", "vendor": "Red Hat", "versions": [{"status": "affected", "version": "3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:keycloak:3.4.3:*:*:*:*:*:*:*", "matchCriteriaId": "3D602684-69EC-4051-AF5B-02595A16BEBA", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:keycloak:4.0.0:beta2:*:*:*:*:*:*", "matchCriteriaId": "91B84EB8-4384-4638-9033-914B0F378D46", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:keycloak:4.3.0:*:*:*:*:*:*:*", "matchCriteriaId": "45BFBB51-AC74-453F-B24D-2BB1E04BD410", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*", "matchCriteriaId": "FABBE0BB-135A-458C-BD84-54C052FFDC57", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:redhat:linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "29B186E5-7C2F-466E-AA4A-8F2B618F8A14", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*", "matchCriteriaId": "FABBE0BB-135A-458C-BD84-54C052FFDC57", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:redhat:linux:6.0:*:*:*:*:*:*:*", "matchCriteriaId": "2DFA94D5-0139-490C-8257-0751FE9FBAE4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:*", "matchCriteriaId": "341E6313-20D5-44CB-9719-B20585DC5AD6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login."}, {"lang": "es", "value": "Se ha descubierto un error en Keycloak 3.4.3.Final, 4.0.0.Beta2 y 4.3.0.Final. Al emplear \"response_mode=form_post\", es posible inyectar c\u00f3digo JavaScript arbitrario mediante el par\u00e1metro \"state\" en la URL de autenticaci\u00f3n. Esto permite un ataque Cross-Site Scripting (XSS) al iniciar sesi\u00f3n exitosamente."}], "id": "CVE-2018-14655", "lastModified": "2026-06-17T01:41:23.190", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.1, "impactScore": 2.5, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-11-13T19:29:00.307", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3592"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3593"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3595"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3592"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3593"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3595"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2018:3595", "cpe": "cpe:/a:redhat:jboss_single_sign_on:7.2", "product_name": "Red Hat Single Sign-On 7.2.5 zip", "release_date": "2018-11-13T00:00:00Z"}, {"advisory": "RHSA-2018:3592", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el6", "package": "rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el6", "product_name": "Red Hat Single Sign-On 7.2 for RHEL 6", "release_date": "2018-11-13T00:00:00Z"}, {"advisory": "RHSA-2018:3593", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el7", "package": "rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el7", "product_name": "Red Hat Single Sign-On 7.2 for RHEL 7", "release_date": "2018-11-13T00:00:00Z"}], "bugzilla": {"description": "keycloak: XSS-Vulnerability with response_mode=form_post", "id": "1625396", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1625396"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.6", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-79", "details": ["A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login."], "name": "CVE-2018-14655", "package_state": [{"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Will not fix", "package_name": "keycloak", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:mobile_application_platform:4", "fix_state": "Out of support scope", "package_name": "keycloak", "product_name": "Red Hat Mobile Application Platform 4"}], "public_date": "2018-11-13T17:37:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-14655\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-14655"], "threat_severity": "Moderate"}

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