Saltcorn is an extensible, open source, no-code database application builder. Prior to 1.4.5, 1.5.5, and 1.6.0-beta.4, the POST /sync/offlinechanges endpoint allows an unauthenticated attacker to create arbitrary directories and write a changes.json file with attacker-controlled JSON content anywhere on the server filesystem. The GET /sync/uploadfinished endpoint allows an unauthenticated attacker to list arbitrary directory contents and read specific JSON files. This vulnerability is fixed in 1.4.5, 1.5.5, and 1.6.0-beta.4.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40163.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.4.5"
},
{
"introduced": "1.5.0"
},
{
"fixed": "1.5.5"
}
],
"cpe": "cpe:2.3:a:saltcorn:saltcorn:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}