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CVE-2026-6815

MediumPublished

An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due to insufficient path sanitization, an authenticated...

Published: May 11, 2026
Updated: May 13, 2026
Assigning CNA: certcc
Evidence observed: May 27, 2026

Primary CVSS

5.9/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS probability estimate

0.5%

Low · next 30 days

Percentile: 42.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due to insufficient path sanitization, an authenticated attacker with administrative privileges can perform a Path Traversal attack to create or overwrite arbitrary files anywhere on the host filesystem, bypassing the application's intended storage sandbox.

Sources

CVE-2026-6815PoC
Authenticated path traversal and arbitrary file write PoC exploit for Casdoor <3.54.1, enabling RCE via SSH key injection, web shell upload, or persistent DoS through database corruption.
Casdoor 3.54.1 - Arbitrary File Write via Path TraversalExploit
sixpain · go · May 27, 2026

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