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CVE-2025-8259

32
FAUCET Score

CVE-2025-8259 is a critical OS command injection vulnerability found in Vaelsys 4.1.0, specifically within the execute_DataObjectProc function of the /grid/vgrid_server.php file. This flaw allows for remote, unauthenticated attackers to execute arbitrary commands by manipulating the xajaxargs argument. With a CVSS score of 9.8, it poses a severe risk of complete compromise (confidentiality, integrity, and availability). While public exploit details are available, there is no evidence of active exploitation, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.1.0CPE matchmatch criteria
cpe:2.3:a:vaelsys:vaelsys:4.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.5MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
3.25%
Probability of exploitation in next 30 days
EPSS Percentile
87.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0325 is in the 79th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / waiwai24/0101/blob/main/CVEs/Vaelsys/Remote_Code_Execution_in_Vaelsys_V4_Platform.md
ExploitThird Party Advisory
vaelsys.github.io / security-advisory/advisories/VSEC_V4_2025_07_0001.html
vuldb.com / submit/616920
vuldb.com / vuln/317847
vuldb.com / vuln/317847/cti