CVE-2026-120331
Full vulnerability record from the local CVENow database.
Description
Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network.
Severity
MEDIUM
CVSS score
5.3
(v4.0)
Vulnerability status
Received
Source identifier
f4fb688c-4412-4426-b4b8-421ecf27b14a
Published
2026-11-03 10:17:17.970000
Last modified
2026-11-03 10:17:17.970000
View original CVE JSON
{
"id": "CVE-2026-120331",
"sourceIdentifier": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"published": "2026-11-03T10:17:17.970",
"lastModified": "2026-11-03T10:17:17.970",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host. Backend users with access to the mail module can make the server send requests to hosts in the internal network."
}
],
"affected": [
{
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"affectedData": [
{
"vendor": "TYPO3",
"product": "Extension \"Mail\"",
"defaultStatus": "unaffected",
"collectionURL": "https://packagist.org/",
"packageName": "mediaessenz/mail",
"versions": [
{
"version": "4.0.0",
"lessThan": "4.2.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.12.5",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/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",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
]
},
"weaknesses": [
{
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
],
"references": [
{
"url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-037",
"source": "f4fb688c-4412-4426-b4b8-421ecf27b14a"
}
]
}