Froxlor is open source server administration software. Version 2.3.6 lets administrators configure system.available_shells as the approved shell list that customers may assign to FTP users. However, the server-side FTP account handlers do not enforce that whitelist when processing add or edit requests. As a result, an authenticated customer with shell delegation enabled can submit an arbitrary shell such as /bin/bash even when the panel UI only offers more restricted choices. In deployments that use the default nssextrausers integration, the attacker-controlled shell is then propagated into the system account database, leading to real host shell access. Version 2.3.7 fixes the issue.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41235.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "= 2.3.6"
},
{
"last_affected": "= 2.3.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"original_tag": "2.3.7",
"range": [
{
"fixed": "070e537744f20d30743a22e82f783e81893d7e54"
}
],
"source": "REFERENCES_TAG"
}
]
}