What’s Vulnerable › Vulnerabilities

CVE-2026-64856: FileRise: Missing Authentication Guard on File Snippet Preview Endpoint

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-15
• Weakness: CWE-200

Description

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.20.0, FileRise /api/file/snippet.php does not apply the standard authenticated-session guard before processing short text preview requests. The endpoint still performs FileRise ACL checks, so normal installations do not expose an unauthenticated arbitrary file read, but unauthenticated requests can reach ACL evaluation instead of receiving an immediate 401 response. Only additional unusual proxy-header or ACL misconfiguration is documented as allowing requests to proceed into path and file-content handling. This issue is fixed in version 3.20.0.

Affected products

• error311 FileRise: before 3.20.0

References

• https://github.com/error311/FileRise/commit/8c0875bf8f7fd5c6769f4159b999bf08a9d4f0c9
• https://github.com/error311/FileRise/releases/tag/v3.20.0
• https://github.com/error311/FileRise/security/advisories/GHSA-p4c7-8jm2-m88q

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