CVE-2026-104478 Formwork - Path Traversal

Formwork < 2.3.13 contains a path traversal caused by base64-encoded backslash-separated traversal payload in BackupController, letting authenticated panel users read or delete arbitrary files, exploit requires backup download or delete permission.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Read, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Published
3 October 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to version 2.3.13 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs