CVE-2025-8261

HIGH

Vaelsys - Improper Authorization

Title source: rule
STIX 2.1

Description

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 (8)

Core 8
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-317849 | Vaelsys VaelsysV4 User Creation vgrid_server.php improper authorization
https://vuldb.com/vuln/317849
Third Party Advisory third-party-advisory
Submit #616924 | Vaelsys Vaelsys V4 v4.1.0 Unauthorized User Creation Vulnerability
https://vuldb.com/submit/616924
Signature, Permissions Required signature permissions-required
VDB-317849 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/317849/cti
Permissions Required, VDB Entry
https://vuldb.com/?ctiid.317849
Third Party Advisory, VDB Entry
https://vuldb.com/?id.317849
Third Party Advisory, VDB Entry
https://vuldb.com/?submit.616924

Scores

CVSS v3 7.3
EPSS 0.0014
EPSS Percentile 33.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-266 CWE-285
Status published
Products (2)
vaelsys/vaelsys 4.1.0
Vaelsys/VaelsysV4 4.1.0
Published Jul 28, 2025
Tracked Since Feb 18, 2026