CVE-2026-54200
Tobit Laboratories AG TeamDavid's Webbox is vulnerable to a local file inclusion vulnerability in the send email, fax, SMS, etc. functionality. By specifying an '@@attach' command in the form field 'scjob', files can be attached to a message, which can then be downloaded by an authenticated user. A filter is in place that restricts access to the David con-fig folder and the user folder. However, this filter can be bypassed by specifying an alternate data stream, allowing the download of sensitive files such as other users' access files containing their passwords or the server's private key. This issue affects TeamDavid before Rollout 528.
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Starting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 8.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.40%
- Percentil entre todas las CVEs puntuadas: 32
- Fecha de la puntuación: 6/10/2026
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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement75 % - Impacto principal
T1005Data from Local Systemcollection80 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation60 % - Impacto secundario
T1552.001Credentials In Filescredential access75 %
Acceso remoto autenticado (PR:L, AV:N) a servicio web Webbox para leer archivos locales mediante bypass de filtros con ADS; exfiltración de credenciales y claves privadas.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-73
Referencias
JSON original (NVD)
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"id": "CVE-2026-54200",
"cveTags": [],
"metrics": {
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"id": "CVE-2026-54200",
"role": "CISA Coordinator",
"options": [
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"timestamp": "2026-08-10T11:27:41.186723Z"
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"affected": [
{
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"affectedData": [
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"vendor": "Tobit Laboratories AG",
"modules": [
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"versions": [
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"published": "2026-08-07T10:16:56.640",
"references": [
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"url": "https://chayns.net/77892-10814/tapp/763210?postId=11454",
"source": "vulnerability@ncsc.ch"
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{
"url": "https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/",
"source": "vulnerability@ncsc.ch"
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"value": "Tobit Laboratories AG TeamDavid's Webbox is vulnerable to a local file inclusion vulnerability in\n the send email, fax, SMS, etc. functionality. By specifying an '@@attach' command in the form field 'scjob', files can be attached to a message, \nwhich can then be downloaded by an authenticated user. A filter is in \nplace that restricts access to the David con-fig folder and the user \nfolder. However, this filter can be bypassed by specifying an alternate \ndata stream, allowing the download of sensitive files such as other \nusers' access files containing their passwords or the server's private \nkey. This issue affects TeamDavid before Rollout 528.\n\nStarting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality."
}
],
"lastModified": "2026-09-07T13:20:24.897",
"sourceIdentifier": "vulnerability@ncsc.ch"
}