Critical severity · published Jul 28, 2025
CVE-2025-8259
Vaelsys VaelsysV4 Web interface vgrid_server.php execute_DataObjectProc os command injection
9.8
CVSS
3.2%
EPSS
No
On KEV
Description
A vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. Affected by this issue is the function execute_DataObjectProc of the file /grid/vgrid_server.php of the component Web interface. Such manipulation of the argument xajaxargs leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used. Upgrading to version 5.1.1 and 5.4.1 can resolve this issue. It is suggested to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VA
VaelsysV4 · Vaelsys
5.0; 5.1; 5.1.0; 5.2; 5.3; 5.4.0 · source: vendor
VA
Vaelsys · Vaelsys
4.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-8259
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-8259
Exploit
https://github.com/waiwai24/0101/blob/main/CVEs/Vaelsys/Remote_Code_Execution_in_Vaelsys_V4_Platform.md
vaelsys.github.io
https://vaelsys.github.io/security-advisory/advisories/VSEC_V4_2025_07_0001.html
vuldb.com
https://vuldb.com/submit/616920
vuldb.com
https://vuldb.com/vuln/317847
vuldb.com
https://vuldb.com/vuln/317847/cti
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