Critical severity · published Jun 19, 2026
CVE-2026-54414
FileRise shared-folder upload path traversal allows arbitrary file write and admin takeover
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
FileRise before 3.16.0 is vulnerable to path traversal in the shared-folder upload endpoint (/api/folder/uploadToSharedFolder.php), leading to arbitrary file write and administrator account takeover. The upload filename is validated by FolderController with basename and REGEX_FILE_NAME, which permit URL-encoded sequences (the regex blocks / and \ but not %).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
FileRise · error311
through 3.16.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54414
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54414
github.com
https://github.com/error311/FileRise
github.com
https://github.com/error311/FileRise/blob/v3.15.0/src/FileRise/Domain/UploadModel.php#L1023
github.com
https://github.com/error311/FileRise/releases/tag/v3.16.0
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