Saltcorn Server allows logged-in users to delete arbitrary files because of a path traversal vulnerability

Description

A logged-in user with any role can delete arbitrary files on the filesystem by calling the sync/clean_sync_dir endpoint. The dir_name POST parameter is not validated/sanitized and is used to construct the syncDir that is deleted by calling fs.rm.

Recommendation

Update the @saltcorn/server package to the latest compatible version. Followings are version details:

• Affected version(s): <= 1.0.0-beta.15
• Patched version(s): 1.0.0-beta.16

References

• GHSA-43f3-h63w-p6f6
• CVE-2024-47818
• CWE-22
• CAPEC-310
• OWASP 2021-A1
• OWASP 2021-A6

Related Issues

• SillyTavern: Path Traversal in `/api/chats/export` and `/api/chats/delete` allows arbitrary file read/delete within user - CVE-2026-34524
• Saltcorn has an Unauthenticated Path Traversal in sync endpoints, allowing arbitrary file write and directory read - CVE-2026-40163
• Parse Server: `PagesRouter` path traversal allows reading files outside configured pages directory - CVE-2026-30848
• SillyTavern has a path traversal in `/api/chats/import` allows arbitrary file write outside intended chat directory - CVE-2026-34522

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Tags:

npm

@saltcorn/server