Missing Authorization Flaw in Eladmin LocalStorageController
CVE-2026-108688

5.3MEDIUM

Key Information:

Vendor

Elunez

Status
Eladmin
Vendor
CVE Published:
11 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108688?

Eladmin versions up to 2.7 are affected by a vulnerability in the LocalStorageController's uploadPicture handler. This flaw allows authenticated users with low privileges to bypass required permissions for file uploads. By exploiting this weakness, attackers can issue POST requests with image-named files to the endpoint /api/localStorage/pictures, enabling unauthorized access to write files into the server's local storage. This can potentially lead to sensitive information exposure, including the disclosure of absolute server paths.

Affected Version(s)

eladmin 0 <= 2.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108688 - Proof of Concept

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1...
exploit
https://github.com/elunez/eladmin/blob/39d480938d27a9630d...
technical-description
https://www.vulncheck.com/advisories/eladmin-through-2.7-...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yaqi Chao
.