CVE-2016-8581
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault...
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault OSSIM and USM before 5.3.2 that allows an attacker to steal session IDs of logged in users when the current sessions are viewed by an administrator.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault OSSIM and USM before 5.3.2 that allows an attacker to steal session IDs of logged in users when the current sessions are viewed by an administrator.
- Record
CVE-2016-8581- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault OSSIM and USM before 5.3.2 that allows an attacker to steal session IDs of logged in users when the current sessions are viewed by an administrator.
- Record
CVE-2016-8581- Updated
- 2026-11-02
EUVDEUVD-2016-9428 No score
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault OSSIM and USM before 5.3.2 that allows an attacker to steal session IDs of logged in users when the current sessions are viewed by an administrator.
- Record
EUVD-2016-9428- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pf5m-28cv-hpp4
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault...
A persistent XSS vulnerability exists in the User-Agent header of the login process of AlienVault OSSIM and USM before 5.3.2 that allows an attacker to steal session IDs of logged in users when the current sessions are viewed by an administrator.
- Record
GHSA-pf5m-28cv-hpp4- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Alienvault OSSIM/USM 5.3.1 - Persistent Cross-Site Scripting | 2016-11-02 |
| Metasploit | AlienVault OSSIM SQL Injection and Remote Code Execution | 2014-04-24 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-8581 is a medium vulnerability (CVSS 6.1) in Alienvault Open Source Security Information And Event Management, published October 28, 2016. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 17.1%, the 97th percentile. No source names a fixed version.