Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck
CVE-2026-104478Formwork before 2.3.13 Path Traversal via BackupController Download and Delete
High 7.1
In plain English
A high-severity path traversal in formwork from getformwork. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.4%top 71.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Formwork before 2.3.13 contains a path traversal vulnerability in BackupController that allows authenticated panel users to read or delete arbitrary files. Attackers with backup download or delete permission can supply a base64-encoded backslash-separated traversal payload that bypasses PHP basename on Linux to access files outside the backup directory.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| getformwork | formwork | 0 – before 2.3.13 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L