Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-103988FileRise renameFolder omits destination-parent authorization

Medium 5.4

In plain English

A medium-severity improper access control in FileRise from error311. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 86.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise /api/folder/renameFolder.php authorizes an authenticated, non-folder-scoped, non-administrator with a valid CSRF token against the source folder but does not independently authorize a changed destination parent. A qualifying user who owns a source folder can move that tree beneath another user's existing folder or into the root namespace, and the operation rekeys the moved ownership and ACL records to the new path. The destination must be unused and existing victim files cannot be overwritten. Distinct pre-fix errors reveal whether a specifically guessed destination path exists, but disclose no directory listing or file contents. This issue is fixed in version 3.23.0.

Affected products (as reported)

Vendor	Product	Versions
error311	FileRise	< 3.23.0

Weakness: CWE-284, CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/error311/FileRise/security/advisories/GHSA-hhc9-q8vh-95p8 x_refsource_CONFIRM
https://github.com/error311/FileRise/commit/cc1118923b522baff28dca05bdd79c27f984c68a x_refsource_MISC
https://github.com/error311/FileRise/releases/tag/v3.23.0 x_refsource_MISC