CVE-2026-22675

OCS Inventory NG Server Stored XSS via User-Agent

Assigner: VulnCheck
Reserved: 08.01.2026 Published: 06.04.2026 Updated: 07.04.2026

OCS Inventory NG Server version 2.12.3 and prior contain a stored cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript by submitting malicious User-Agent HTTP headers to the /ocsinventory endpoint. Attackers can register rogue agents or craft requests with malicious User-Agent values that are stored without sanitation and rendered with insufficient encoding in the web console, leading to arbitrary JavaScript execution in the browsers of authenticated users viewing the statistics dashboard.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 5.4

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	OCS Inventory
Product	OCS Inventory NG Server
Versions	Default: unaffected affected from 0 to 2.12.3 (incl.) Version 78faf2ca8b897141ba4d337d75692ab8e405bd4e is unaffected

Vendor

OCS Inventory

Product

OCS Inventory NG Server

Versions

Default: unaffected

affected from 0 to 2.12.3 (incl.)
Version 78faf2ca8b897141ba4d337d75692ab8e405bd4e is unaffected

Credits

Alexandre Nesic (@_atsika) at Quarkslab finder

References

Problem Types