Improper Authorization in Vaelsys 4.1.0 Affects User Creation Handler
CVE-2025-8261

6.9MEDIUM

Key Information:

Vendor

Vaelsys

Status
Vaelsys
Vendor
CVE Published:
28 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8261?

A significant vulnerability has been identified in Vaelsys 4.1.0, specifically within the User Creation Handler component located at /grid/vgrid_server.php. This security flaw allows unauthorized manipulation, which can lead to improper authorization and potential exploitation by remote attackers. The issue has been publicly disclosed and has not been addressed by the vendor, raising concerns regarding the security posture of users relying on this software version.

Affected Version(s)

Vaelsys 4.1.0

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-2025-8261 - Proof of Concept

References

https://vuldb.com/?id.317849
vdb-entry
https://vuldb.com/?ctiid.317849
signaturepermissions-required
https://vuldb.com/?submit.616924
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

waiwai24 (VulDB User)
.