TI-2026-74486 Aliases CVE-2026-104107

Path traversal in FileRise lets users write files outside storage root

MEDIUM 62CWE-22Published 2026-10-14 · Updated 2026-10-15

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

FileRise by error311 is affected before 3.23.0. It has a path traversal flaw (CWE-22) because dot and parent directory segments in the folder input of the save file operation are not canonicalized before access control checks. An authenticated non-administrator user with inherited edit permission on an ancestor folder can create files outside the authorized folder, and outside the configured WebDAV root where backend credentials allow.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In FileRise 3.22.0, the /api/file/saveFile.php operation accepts dot and dot-dot segments in its attacker-controlled folder input before ACL inheritance evaluates the uncanonicalized string. With an authenticated non-administrator session, a valid CSRF token, and inherited edit permission on a legitimate ancestor, the local filesystem or WebDAV adapter later resolves those segments as path navigation, permitting attacker-controlled file creation outside the authorized folder and, where backend credentials permit, outside the configured WebDAV root. Local storage also created directories before final containment validation and used a prefix comparison that accepted similarly named sibling roots. This issue is fixed in version 3.23.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00364 30th percentileScored 2026-11-07

Fix Fixed FileRise (error311): 3.23.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
error311	FileRise	before 3.23.0	3.23.0	Patch available	CNA

FileRise Vendorerror311 Affected before 3.23.0 Fixed in 3.23.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:filerise:filerise::::::::	—	—	error311

cpe:2.3:a:filerise:filerise:*:*:*:*:*:*:*:* Versions — — ·error311

Remediation

Upgrade FileRise to version 3.23.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA FileRise (error311) Fixed in 3.23.0

Timeline

2026-10-15 Threatist record created from CVE-2026-104107
2026-10-15 CISA SSVC decision points changed

References

Other 3

TI-2026-74499 Unauthenticated file overwrite in FileRise via upload-enabled shares CVSS 3.1HIGH 8.2
TI-2026-25514 FileRise: Default Encryption Key Enables Token Forgery and Config Decryption CVSS 3.1HIGH 8.2
TI-2025-41705 FileRise vulnerable to Cross-Site Scripting (XSS) in SVG File Handling CVSS 3.1HIGH 8.9
TI-2026-25513 FileRise: WebDAV upload path bypasses filename validation enforced by regular uploads CVSS 3.1HIGH 8.8
TI-2026-74495 WebDAV authentication in FileRise skips TOTP two-factor check CVSS 3.1HIGH 8.1
TI-2026-74494 Authentication bypass in FileRise via spoofed reverse-proxy headers CVSS 3.1HIGH 8.1

See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences