CVE-2026-6815 | CVE-2026-6815

Exp

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.

Published: 2026-05-11 Last update: 2026-06-01 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-6815 is rated High Exploit Risk (65.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.88%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-6815

EDB-ID Source Kind Published Link
52584 exploit_db edb 2026-05-27 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-6815

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-12 0.80% 0.88% +0.07%
2 2026-06-02 0.30% 0.80% +0.50%
3 2026-06-01 — 0.30% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-6815

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.5 3.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-6815

GitHub Security Advisory for CVE-2026-6815

GHSA-rmxx-v9rj-vpvg · Severity: medium — An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due...

Affected software / configurations for CVE-2026-6815

Vendor Product Version Raw CPE
casbin casdoor <= 2.328.0 cpe:2.3:a:casbin:casdoor:*:*:*:*:*:*:*:*

References for CVE-2026-6815

URL Tags
https://kb.cert.org/vuls/id/937808 Third Party Advisory VDB Entry
https://www.kb.cert.org/vuls/id/937808 Third Party Advisory VDB Entry
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