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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-6815

An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider.

EXPLOITMEDIUM 5.9EPSS 0.51%

Does this matter?

A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 0.5%. Treat it as high on anything reachable from the internet.

Description

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.

CVSS 3.1
5.9 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
0.51% probability · 43th percentile
Public exploits
1 in Exploit-DB · first 27 May 2026
CISA KEV
Not listed
Weakness
CWE-22
Affected
casbin/casdoor
Source
cret@cert.org
EPSS trend
0%3%5%26 October 2026: 0.51%26 October 202626 October 2026

EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-52584source ↗Casdoor 3.54.1 - Arbitrary File Write via Path Traversalgo · sixpainwebapps27 May 2026no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.