CVE-2026-11443

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "Allegra", "vendor": "Allegra", "versions": [{"status": "affected", "version": "8.1.6.22"}]}], "source": "zdi-disclosures@trendmicro.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Allegra downloadAttachment Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to execute arbitrary script on affected installations of Allegra. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the downloadAttachment method. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of arbitrary script. An attacker can leverage this vulnerability to execute script in the context of the current user. Was ZDI-CAN-28236."}, {"lang": "es", "value": "Vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n por cross-site scripting en Allegra downloadAttachment. Esta vulnerabilidad permite a atacantes remotos ejecutar script arbitrario en instalaciones afectadas de Allegra. Se requiere interacci\u00f3n del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una p\u00e1gina maliciosa o abrir un archivo malicioso.\n\nLa falla espec\u00edfica existe dentro del m\u00e9todo downloadAttachment. El problema resulta de la falta de validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede llevar a la inyecci\u00f3n de script arbitrario. Un atacante puede aprovechar esta vulnerabilidad para ejecutar script en el contexto del usuario actual. Fue ZDI-CAN-28236."}], "id": "CVE-2026-11443", "lastModified": "2026-07-23T09:10:00.113", "metrics": {"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": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-11443", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-15T17:25:57.871945Z", "version": "2.0.3"}}]}, "published": "2026-06-13T00:16:24.290", "references": [{"source": "zdi-disclosures@trendmicro.com", "url": "https://alltena.com/en/resources/release-notes/release-notes-for-release-9-0-0/"}, {"source": "zdi-disclosures@trendmicro.com", "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-358/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "8.1.6.22"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "allegra", "vendor": "allegra"}], "created": "2026-06-13T00:30:10.445254+00:00", "updated": "2026-06-13T12:29:12.429955+00:00", "vendors": ["allegra", "allegra$PRODUCT$allegra"]}