Froxlor before 2.3.13 returns the ssl_key_file column — which stores the raw PEM TLS private-key content — verbatim in the JSON responses of the Certificates.get and Certificates.listing API commands, because the results of the underlying domain_ssl_settings queries are passed through ApiCommand::response() without any field stripping or allowlist. A low-privileged authenticated customer API caller can retrieve the private keys of their own domains' certificates, including Let's Encrypt keys that Froxlor generates server-side and stores root-only (0600) and to which the customer otherwise has no filesystem access; reseller and customers_see_all admin accounts can dump the private keys of other principals through the same sink. Disclosed keys enable domain impersonation, passive decryption of captured TLS traffic, and active machine-in-the-middle attacks.
Froxlor before 2.3.13 Private Key Disclosure via Certificates API
Problem type
Affected products
froxlor
< 2.3.13 - AFFECTED
2.3.13 - UNAFFECTED
References
https://github.com/froxlor/froxlor/security/advisories/GHSA-6q2v-jjq5-m2c8
https://www.vulncheck.com/advisories/froxlor-before-2.3.13-private-key-disclosure-via-certificates-api
GitHub Security Advisories
GHSA-wq4p-x9fv-rhvg
Froxlor before 2.3.13 returns the ssl_key_file column — which stores the raw PEM TLS private-key...
https://github.com/advisories/GHSA-wq4p-x9fv-rhvgFroxlor before 2.3.13 returns the ssl_key_file column — which stores the raw PEM TLS private-key content — verbatim in the JSON responses of the Certificates.get and Certificates.listing API commands, because the results of the underlying domain_ssl_settings queries are passed through ApiCommand::response() without any field stripping or allowlist. A low-privileged authenticated customer API caller can retrieve the private keys of their own domains' certificates, including Let's Encrypt keys that Froxlor generates server-side and stores root-only (0600) and to which the customer otherwise has no filesystem access; reseller and customers_see_all admin accounts can dump the private keys of other principals through the same sink. Disclosed keys enable domain impersonation, passive decryption of captured TLS traffic, and active machine-in-the-middle attacks.
https://github.com/froxlor/froxlor/security/advisories/GHSA-6q2v-jjq5-m2c8
https://nvd.nist.gov/vuln/detail/CVE-2026-100708
https://www.vulncheck.com/advisories/froxlor-before-2.3.13-private-key-disclosure-via-certificates-api
https://github.com/advisories/GHSA-wq4p-x9fv-rhvg
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-100708Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-100708",
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"dateUpdated": "2026-09-26T13:24:02.102Z",
"dateReserved": "2026-09-26T02:40:23.372Z",
"datePublished": "2026-09-26T13:24:02.102Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck",
"dateUpdated": "2026-09-26T13:24:02.102Z"
},
"datePublic": "2026-09-06T00:00:00.000Z",
"title": "Froxlor before 2.3.13 Private Key Disclosure via Certificates API",
"descriptions": [
{
"lang": "en",
"value": "Froxlor before 2.3.13 returns the ssl_key_file column — which stores the raw PEM TLS private-key content — verbatim in the JSON responses of the Certificates.get and Certificates.listing API commands, because the results of the underlying domain_ssl_settings queries are passed through ApiCommand::response() without any field stripping or allowlist. A low-privileged authenticated customer API caller can retrieve the private keys of their own domains' certificates, including Let's Encrypt keys that Froxlor generates server-side and stores root-only (0600) and to which the customer otherwise has no filesystem access; reseller and customers_see_all admin accounts can dump the private keys of other principals through the same sink. Disclosed keys enable domain impersonation, passive decryption of captured TLS traffic, and active machine-in-the-middle attacks."
}
],
"affected": [
{
"vendor": "froxlor",
"product": "froxlor",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "semver",
"lessThan": "2.3.13"
},
{
"version": "2.3.13",
"status": "unaffected",
"versionType": "semver"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Exposure of Sensitive Information to an Unauthorized Actor",
"cweId": "CWE-200",
"type": "CWE"
}
]
}
],
"references": [
{
"url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-6q2v-jjq5-m2c8",
"name": "GitHub Security Advisory (GHSA-6q2v-jjq5-m2c8)",
"tags": [
"vendor-advisory"
]
},
{
"url": "https://www.vulncheck.com/advisories/froxlor-before-2.3.13-private-key-disclosure-via-certificates-api",
"name": "VulnCheck Advisory: Froxlor before 2.3.13 Private Key Disclosure via Certificates API",
"tags": [
"third-party-advisory"
]
}
],
"metrics": [
{
"format": "CVSS"
},
{
"format": "CVSS",
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH"
}
}
],
"credits": [
{
"lang": "en",
"value": "manus-use",
"type": "reporter"
}
]
}
}
}