CVE-2026-0540

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{"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Fix deferred", "package_name": "openshift-gitops-1/argocd-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Fix deferred", "package_name": "openshift-gitops-1/argocd-rhel9", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Fix deferred", "package_name": "openshift-gitops-1/console-plugin-rhel8", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Fix deferred", "package_name": "container-native-virtualization/kubevirt-console-plugin", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Fix deferred", "package_name": "container-native-virtualization/kubevirt-console-plugin-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Fix deferred", "package_name": "org.kie-process-migration-service", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Fix deferred", "package_name": "ansible-automation-platform/automation-portal", "product_name": "Self-service automation portal 2"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Fix deferred", "package_name": "com.github.streamshub-console", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Fix deferred", "package_name": "com.github.streamshub-console", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-03-03T17:26:06Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-0540\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-0540\nhttps://github.com/cure53/DOMPurify\nhttps://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5\nhttps://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safeforxml"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.1.3,3.3.1]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.5.3,2.5.8]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "DOMPurify", "source": "cna", "vendor": "cure53"}, "product": "dompurify", "vendor": "cure53"}], "analysis": {"en": {"generated_at": "2026-04-16T14:02:50.549790+00:00", "value": {"mitigation_remediation": ["Upgrade DOMPurify to version 3.3.2 or later, which includes a fix for the rawtext element bypass.", "If an upgrade is not immediately possible, remove or escape usage of the five rawtext elements (noscript, xmp, noembed, noframes, iframe) in the output rendering logic to prevent the bypass from occurring.", "Implement a Content Security Policy that restricts script execution from user\u2011supplied content, adding an additional safeguard against accidental XSS."], "summary": {"action": "Update Library", "impact": "Cross\u2011Site Scripting (XSS)"}, "threat_synthesis": {"affected_systems": "This vulnerability affects the DOMPurify library distributed by cure53. Affected versions include 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8. Any web application that integrates these releases and outputs sanitized HTML into rawtext contexts is potentially impacted.", "description_and_impact": "A flaw in DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8 allows an attacker to insert JavaScript into attribute values that bypass normal sanitization. By crafting payloads such as </noscript><img src=x onerror=alert(1)>, the attacker can cause code execution when the output is later placed inside rawtext elements \u2013 noscript, xmp, noembed, noframes, or iframe \u2013 where attribute sanitization is not enforced.", "risk_and_exploitability": "The CVSS score of 5.3 indicates moderate severity. EPSS is below 1\u202f% and the issue is not listed in the CISA KEV catalog, suggesting limited exploitation activity to date. The likely attack vector involves an attacker providing malicious input to a web application that uses DOMPurify to sanitize that input before rendering it inside rawtext elements. Successful exploitation would enable the attacker to run JavaScript in the victim\u2019s browser session, compromising confidentiality, integrity, or other aspects of the application or user data."}}}}, "created": "2026-03-04T14:54:11.485340+00:00", "updated": "2026-04-16T14:15:28.800210+00:00", "vendors": ["cure53", "cure53$PRODUCT$dompurify"]}