CVE-2026-104808 (GCVE-0-2026-104808)
Vulnerability from cvelistv5
Published
2026-10-05 08:30
Modified
2026-10-05 13:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Summary
DigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web application.
The specific flaw exists within the web portal listening on TCP port 443, under Configuration → Users → Users List. The vulnerability occurs in the “Microsoft Exchange mailbox” field, which fails to properly validate or sanitize user-supplied input before storing and rendering it.
By injecting malicious JavaScript into this field, an attacker can cause the payload to execute whenever the affected user properties are accessed. This can prevent access to the affected user properties and result in a denial-of-service condition within the application's user-management functionality.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mitel | Mitel MiVoice Office 400 |
Version: 11.0.96.0 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104808",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-05T13:04:14.743968Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T13:08:09.637Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"platforms": [
"Linux"
],
"product": "Mitel MiVoice Office 400",
"vendor": "Mitel",
"versions": [
{
"status": "affected",
"version": "11.0.96.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Brian Mariani from DigitalCanion SA"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eDigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web application.\u003c/p\u003e\n\u003cp\u003eThe specific flaw exists within the web portal listening on TCP port 443, under \u003cstrong\u003eConfiguration \u2192 Users \u2192 Users List\u003c/strong\u003e. The vulnerability occurs in the \u003cstrong\u003e\u201cMicrosoft Exchange mailbox\u201d\u003c/strong\u003e field, which fails to properly validate or sanitize user-supplied input before storing and rendering it.\u003c/p\u003e\n\u003cp\u003eBy injecting malicious JavaScript into this field, an attacker can cause the payload to execute whenever the affected user properties are accessed. This can prevent access to the affected user properties and result in a denial-of-service condition within the application\u0027s user-management functionality.\u003c/p\u003e"
}
],
"value": "DigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web application.\n\n\n\n\nThe specific flaw exists within the web portal listening on TCP port 443, under Configuration \u2192 Users \u2192 Users List. The vulnerability occurs in the \u201cMicrosoft Exchange mailbox\u201d field, which fails to properly validate or sanitize user-supplied input before storing and rendering it.\n\n\n\n\nBy injecting malicious JavaScript into this field, an attacker can cause the payload to execute whenever the affected user properties are accessed. This can prevent access to the affected user properties and result in a denial-of-service condition within the application\u0027s user-management functionality."
}
],
"impacts": [
{
"capecId": "CAPEC-63",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-63 Cross-Site Scripting (XSS)"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "YES",
"Recovery": "AUTOMATIC",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 1.9,
"baseSeverity": "LOW",
"exploitMaturity": "PROOF_OF_CONCEPT",
"privilegesRequired": "HIGH",
"providerUrgency": "AMBER",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"valueDensity": "DIFFUSE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/AU:Y/R:A/V:D/RE:L/U:Amber",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "LOW"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T08:30:54.909Z",
"orgId": "455daabc-a392-441d-aa46-37d35189897c",
"shortName": "NCSC.ch"
},
"references": [
{
"url": "https://digitalcanion.com/en/security-research/#vendor=mitel\u0026status=cna"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Mitel MiVoice Office 400 stored Cross-Site Scripting",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
"assignerShortName": "NCSC.ch",
"cveId": "CVE-2026-104808",
"datePublished": "2026-10-05T08:30:54.909Z",
"dateReserved": "2026-10-02T13:47:47.692Z",
"dateUpdated": "2026-10-05T13:08:09.637Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-104808\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-05T13:04:14.743968Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-05T13:08:05.569Z\"}}], \"cna\": {\"title\": \"Mitel MiVoice Office 400 stored Cross-Site Scripting\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Brian Mariani from DigitalCanion SA\"}], \"impacts\": [{\"capecId\": \"CAPEC-63\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-63 Cross-Site Scripting (XSS)\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"AUTOMATIC\", \"baseScore\": 1.9, \"Automatable\": \"YES\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"LOW\", \"valueDensity\": \"DIFFUSE\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/AU:Y/R:A/V:D/RE:L/U:Amber\", \"exploitMaturity\": \"PROOF_OF_CONCEPT\", \"providerUrgency\": \"AMBER\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"LOW\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"LOW\", \"vulnerabilityResponseEffort\": \"LOW\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Mitel\", \"product\": \"Mitel MiVoice Office 400\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.0.96.0\"}], \"platforms\": [\"Linux\"], \"defaultStatus\": \"unknown\"}], \"references\": [{\"url\": \"https://digitalcanion.com/en/security-research/#vendor=mitel\u0026status=cna\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.5\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"DigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web application.\\n\\n\\n\\n\\nThe specific flaw exists within the web portal listening on TCP port 443, under Configuration \\u2192 Users \\u2192 Users List. The vulnerability occurs in the \\u201cMicrosoft Exchange mailbox\\u201d field, which fails to properly validate or sanitize user-supplied input before storing and rendering it.\\n\\n\\n\\n\\nBy injecting malicious JavaScript into this field, an attacker can cause the payload to execute whenever the affected user properties are accessed. This can prevent access to the affected user properties and result in a denial-of-service condition within the application\u0027s user-management functionality.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eDigitalCanion has discovered a stored Cross-Site Scripting (XSS) vulnerability that allows an authenticated malicious user to inject persistent JavaScript or HTML content, resulting in a denial-of-service condition within the web application.\u003c/p\u003e\\n\u003cp\u003eThe specific flaw exists within the web portal listening on TCP port 443, under \u003cstrong\u003eConfiguration \\u2192 Users \\u2192 Users List\u003c/strong\u003e. The vulnerability occurs in the \u003cstrong\u003e\\u201cMicrosoft Exchange mailbox\\u201d\u003c/strong\u003e field, which fails to properly validate or sanitize user-supplied input before storing and rendering it.\u003c/p\u003e\\n\u003cp\u003eBy injecting malicious JavaScript into this field, an attacker can cause the payload to execute whenever the affected user properties are accessed. This can prevent access to the affected user properties and result in a denial-of-service condition within the application\u0027s user-management functionality.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"455daabc-a392-441d-aa46-37d35189897c\", \"shortName\": \"NCSC.ch\", \"dateUpdated\": \"2026-10-05T08:30:54.909Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-104808\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-05T13:08:09.637Z\", \"dateReserved\": \"2026-10-02T13:47:47.692Z\", \"assignerOrgId\": \"455daabc-a392-441d-aa46-37d35189897c\", \"datePublished\": \"2026-10-05T08:30:54.909Z\", \"assignerShortName\": \"NCSC.ch\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…