CVE-2026-43882

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{"affected": [{"affectedData": [{"product": "AVideo", "vendor": "WWBN", "versions": [{"status": "affected", "version": "<= 29.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions up to and including 29.0, the unauthenticated plugin/Scheduler/downloadICS.php endpoint passes attacker-controlled title, description, and joinURL parameters into Scheduler::downloadICS(), which builds an ICS calendar file via the ICS helper class. ICS::escape_string() (objects/ICS.php:167-169) only escapes , and ; and does NOT neutralize CR/LF, so attacker CRLF bytes inside a property value break out and inject arbitrary ICS lines \u2014 including END:VEVENT / BEGIN:VEVENT pairs that add entire attacker-controlled calendar events. Because the malicious .ics file is served from the victim's trusted AVideo origin, this enables high-credibility calendar phishing: forged meetings with attacker-chosen SUMMARY, URL, LOCATION, and DESCRIPTION landing in the victim's calendar after import. Commit 764db592f99e545aa86bb9a4ad664ffd14c38ba5 contains an updated fix."}, {"lang": "es", "value": "WWBN AVideo es una plataforma de video de c\u00f3digo abierto. En versiones hasta la 29.0 inclusive, el endpoint no autenticado plugin/Scheduler/downloadICS.php pasa par\u00e1metros controlados por el atacante de t\u00edtulo, descripci\u00f3n y joinURL a Scheduler::downloadICS(), que construye un archivo de calendario ICS a trav\u00e9s de la clase auxiliar ICS. ICS::escape_string() (objects/ICS.php:167-169) solo escapa , y ; y NO neutraliza CR/LF, por lo que los bytes CRLF del atacante dentro de un valor de propiedad se escapan e inyectan l\u00edneas ICS arbitrarias - incluyendo pares END:VEVENT / BEGIN:VEVENT que a\u00f1aden eventos de calendario enteros controlados por el atacante. Debido a que el archivo .ics malicioso se sirve desde el origen AVideo de confianza de la v\u00edctima, esto permite un phishing de calendario de alta credibilidad: reuniones falsificadas con SUMMARY, URL, LOCATION y DESCRIPTION elegidos por el atacante que aterrizan en el calendario de la v\u00edctima despu\u00e9s de la importaci\u00f3n. El commit 764db592f99e545aa86bb9a4ad664ffd14c38ba5 contiene una correcci\u00f3n actualizada."}], "id": "CVE-2026-43882", "lastModified": "2026-10-26T18:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43882", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-13T14:05:03.419322Z", "version": "2.0.3"}}]}, "published": "2026-05-11T22:22:12.803", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/WWBN/AVideo/commit/764db592f99e545aa86bb9a4ad664ffd14c38ba5"}, {"source": "security-advisories@github.com", "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-mwgh-92m2-wvhv"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-mwgh-92m2-wvhv"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-93"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,29.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "AVideo", "source": "cna", "vendor": "WWBN"}, "product": "avideo", "vendor": "wwbn"}], "created": "2026-05-11T22:45:36.084258+00:00", "updated": "2026-05-11T23:00:19.466824+00:00", "vendors": ["wwbn", "wwbn$PRODUCT$avideo"]}