CVE-2025-8261

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-8261
A weakness has been identified in Vaelsys VaelsysV4 4.1.0. This vulnerability affects unknown code of the file /grid/vgrid_server.php of the component User Creation Handler. Executing a manipulation can lead to improper authorization. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The real existence of this vulnerability is still doubted at the moment. The vendor explains: "Based on Vaelsys' analysis, the reported behavior does not allow actions beyond those already permitted to authenticated administrative users, and no change in system configuration or operational practices is necessary."

7.3 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://github.com/waiwai24/0101/blob/main/CVEs/Vaelsys/Unauthorized_User_Creation_Vulnerability_Exists_in_Vaelsys_V4_Platform.md Exploit Third Party Advisory
https://vaelsys.github.io/security-advisory/advisories/VSEC_V4_2025_07_0003.html
https://vuldb.com/submit/616924
https://vuldb.com/vuln/317849
https://vuldb.com/vuln/317849/cti
Configurations

Configuration 1 (hide)

cpe:2.3:a:vaelsys:vaelsys:4.1.0:*:*:*:*:*:*:*
History

15 Apr 2026, 08:16

Type Values Removed Values Added
Summary (en) A vulnerability was found in Vaelsys 4.1.0 and classified as critical. This issue affects some unknown processing of the file /grid/vgrid_server.php of the component User Creation Handler. The manipulation leads to improper authorization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. (en) A weakness has been identified in Vaelsys VaelsysV4 4.1.0. This vulnerability affects unknown code of the file /grid/vgrid_server.php of the component User Creation Handler. Executing a manipulation can lead to improper authorization. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The real existence of this vulnerability is still doubted at the moment. The vendor explains: "Based on Vaelsys' analysis, the reported behavior does not allow actions beyond those already permitted to authenticated administrative users, and no change in system configuration or operational practices is necessary."
References
  • {'url': 'https://vuldb.com/?ctiid.317849', 'tags': ['Permissions Required', 'VDB Entry'], 'source': 'cna@vuldb.com'}
  • {'url': 'https://vuldb.com/?id.317849', 'tags': ['Third Party Advisory', 'VDB Entry'], 'source': 'cna@vuldb.com'}
  • {'url': 'https://vuldb.com/?submit.616924', 'tags': ['Third Party Advisory', 'VDB Entry'], 'source': 'cna@vuldb.com'}
  • () https://vaelsys.github.io/security-advisory/advisories/VSEC_V4_2025_07_0003.html -
  • () https://vuldb.com/submit/616924 -
  • () https://vuldb.com/vuln/317849 -
  • () https://vuldb.com/vuln/317849/cti -

31 Jul 2025, 17:31

Type Values Removed Values Added
References () https://github.com/waiwai24/0101/blob/main/CVEs/Vaelsys/Unauthorized_User_Creation_Vulnerability_Exists_in_Vaelsys_V4_Platform.md - () https://github.com/waiwai24/0101/blob/main/CVEs/Vaelsys/Unauthorized_User_Creation_Vulnerability_Exists_in_Vaelsys_V4_Platform.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.317849 - () https://vuldb.com/?ctiid.317849 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.317849 - () https://vuldb.com/?id.317849 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.616924 - () https://vuldb.com/?submit.616924 - Third Party Advisory, VDB Entry
CWE NVD-CWE-Other
CPE cpe:2.3:a:vaelsys:vaelsys:4.1.0:*:*:*:*:*:*:*
First Time Vaelsys
Vaelsys vaelsys

29 Jul 2025, 14:14

Type Values Removed Values Added
Summary
  • (es) Se encontró una vulnerabilidad en Vaelsys 4.1.0, clasificada como crítica. Este problema afecta a un procesamiento desconocido del archivo /grid/vgrid_server.php del componente User Creation Handler. La manipulación provoca una autorización indebida. El ataque podría iniciarse en remoto. Se ha hecho público el exploit y puede que sea utilizado. Se contactó al proveedor con antelación sobre esta divulgación, pero no respondió.

28 Jul 2025, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-28 07:15

Updated : 2026-04-29 01:00

NVD link : CVE-2025-8261

Mitre link : CVE-2025-8261

CVE.ORG link : CVE-2025-8261

JSON object : View

Products Affected

vaelsys

  • vaelsys
CWE
CWE-266

Incorrect Privilege Assignment

CWE-285

Improper Authorization

NVD-CWE-Other