Vulnerability · Published Jul 28, 2025 · Assigned by VulDB
CVE-2025-8261Vaelsys VaelsysV4 User Creation vgrid_server.php improper authorization
High 7.3
In plain English
A high-severity security flaw in VaelsysV4 from Vaelsys. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities).
Official 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."
Affected products (as reported)
Weakness: CWE-285, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-317849 | Vaelsys VaelsysV4 User Creation vgrid_server.php improper authorization vdb-entry, technical-description
- VDB-317849 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #616924 | Vaelsys Vaelsys V4 v4.1.0 Unauthorized User Creation Vulnerability third-party-advisory
- https://github.com/waiwai24/0101/blob/main/CVEs/Vaelsys/Unauthorized_User_Creation_Vulnerability_Exists_in_Vaelsys_V4_Platform.md exploit
- https://vaelsys.github.io/security-advisory/advisories/VSEC_V4_2025_07_0003.html related