Vulnerability · Published Apr 10, 2026 · Assigned by GitHub_M

CVE-2026-40163Saltcorn has an Unauthenticated Path Traversal in sync endpoints allows arbitrary file write and directory read

High 8.2

In plain English

A high-severity path traversal in saltcorn from saltcorn. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.3%top 73.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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/offline_changes 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/upload_finished 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@saltcorn/server	1.4.5	GHSA-32pv-mpqg-h292
npm	@saltcorn/server	1.5.5	GHSA-32pv-mpqg-h292
npm	@saltcorn/server	1.6.0-beta.4	GHSA-32pv-mpqg-h292

Affected products (as reported)

Vendor	Product	Versions
saltcorn	saltcorn	< 1.4.5>= 1.5.0-beta.0, < 1.5.5>= 1.6.0-alpha.0, < 1.6.0-beta.4

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

References

https://github.com/saltcorn/saltcorn/security/advisories/GHSA-32pv-mpqg-h292 x_refsource_CONFIRM