CVE-2016-5124
An issue was discovered in Open-Xchange OX App Suite before 7.8.1-rev14. Adding images from external sources to HTML editors by drag&drop can potentially lead to script code execution in the context of the active user. To exploit this, a user needs to be tricked to use an image from a specially crafted website and add it to HTML editor areas of OX App Suite, for example E-Mail Compose or OX Text. This specific attack circumvents typical XSS filters and detection mechanisms since the code is not loaded from an external service but injected locally.
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Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.). To exploit this vulnerability, a attacker needs to convince a user to follow specific steps (social-engineering).
CVSS
- Versión: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 6.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.34%
- Percentil entre todas las CVEs puntuadas: 70
- Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-79
Referencias
- http://packetstormsecurity.com/files/137894/Open-Xchange-App-Suite-7.8.1-Cross-Site-Scripting.html
- http://www.securityfocus.com/archive/1/538892/100/0/threaded
- http://www.securityfocus.com/bid/91775
- http://www.securitytracker.com/id/1036296
- http://packetstormsecurity.com/files/137894/Open-Xchange-App-Suite-7.8.1-Cross-Site-Scripting.html
- http://www.securityfocus.com/archive/1/538892/100/0/threaded
- http://www.securityfocus.com/bid/91775
- http://www.securitytracker.com/id/1036296
JSON original (NVD)
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"value": "An issue was discovered in Open-Xchange OX App Suite before 7.8.1-rev14. Adding images from external sources to HTML editors by drag&drop can potentially lead to script code execution in the context of the active user. To exploit this, a user needs to be tricked to use an image from a specially crafted website and add it to HTML editor areas of OX App Suite, for example E-Mail Compose or OX Text. This specific attack circumvents typical XSS filters and detection mechanisms since the code is not loaded from an external service but injected locally. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.). To exploit this vulnerability, a attacker needs to convince a user to follow specific steps (social-engineering)."
},
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"value": "Ha sido descubierto un problema en Open-Xchange OX App Suite en versiones anteriores a 7.8.1-rev14. Añadir imágenes de recursos externos a los editores HTML con drag&drop puede potencialmente permitir una ejecución de código script en el contexto de un usuario activo. Para explotar esto, un usuario necesita ser engañado para usar una imagen de un sitio web manipulado especial y añadirla a las áreas de editor HTML de OX App Suite, por ejemplo E-Mail Compose o OX Text. Este ataque específico evita los filtros XSS y los mecanismos de detección típicos, ya que el código no se carga desde un servicio externo sino que se inyecta localmente. El código script malicioso puede ser ejecutado en un contexto de usuario. Esto puede conducir al secuestro de sesión o activar acciones no deseadas a través de la interfaz web (envío de correo, eliminación de datos, etc.). Para explotar esta vulnerabilidad, un atacante necesita convencer a un usuario de seguir pasos específicos (ingeniería social)."
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"lastModified": "2026-06-17T00:48:47.643",
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