Cyber Resilience

CVE-2026-6815

MediumUpdated

Published: 11 May 2026

Published
11 May 2026
Modified
01 June 2026
KEV Added
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Patch
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CVSS Score v3.1 5.9 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0051 39.7th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-6815 is a medium-severity Path Traversal (CWE-22) vulnerability in Casbin Casdoor. Its CVSS base score is 5.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Web Shell (T1505.003); ranked at the 39.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability details

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…

more

filesystem, bypassing the application's intended storage sandbox.

CWE(s)
CWE-22

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
attack.mitre.org →
Why these techniques?

Arbitrary file write via path traversal directly enables deployment of web shells or malicious server components on the host filesystem.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

casbin
casdoor
≤ 2.328.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-10 Information Input Validation
addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

References