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Vulnerability record · CVE-2016-8581 · published 28 October 2016

CVE-2016-8581: Alienvault open source security information and event management cross-site scripting vulnerability

Alienvault · Open Source Security Information And Event Management

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.

6.1 CVSS 3.0 Medium EPSS 17% · top 3.0% CWE-79 · Cross-site scripting
6.1CVSS 3.0 base score, v2 4.3
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/93862
https://www.alienvault.com/forums/discussion/7766/security-advisory-alienvault-5-3-2-address-70-vulnerabilities Vendor Advisory
https://www.exploit-db.com/exploits/40683/
http://www.securityfocus.com/bid/93862
https://www.alienvault.com/forums/discussion/7766/security-advisory-alienvault-5-3-2-address-70-vulnerabilities Vendor Advisory
https://www.exploit-db.com/exploits/40683/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-7279Alienvault open source security information management vulnerabilityA remote code execution issue was discovered in AlienVault USM and OSSIM before 5.5.1.EPSS 2.4%9.8CVE-2017-6972Alienvault ossim vulnerabilityAlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 have an error in privilege dropping and unnecessarily execute the NfSen Perl code as roo…EPSS 15%9.8CVE-2016-7955Alienvault ossim permissions and access controls vulnerabilityThe logcheck function in session.inc in AlienVault OSSIM before 5.3.1, when an action has been created, and USM before 5.3.1 allows remote attackers …EPSS 6.4%9.8CVE-2016-8582AlienVault OSSIM/USM gauge.php SQL injection enables arbitrary query executionAlienVault OSSIM and USM before 5.3.2 contain a SQL injection flaw in gauge.php that lets an attacker run arbitrary SQL queries against the backend d…EPSS 57%analysed9.8CVE-2016-8580Alienvault open source security information and event management improper access control vulnerabilityPHP object injection vulnerabilities exist in multiple widget files in AlienVault OSSIM and USM before 5.3.2. These vulnerabilities allow arbitrary P…EPSS 6.9%9.3CVE-2015-3446Alienvault unified security management code injection vulnerabilityThe Framework Daemon in AlienVault Unified Security Management before 4.15 allows remote attackers to execute arbitrary Python code via a crafted plu…EPSS 2.4%8.8CVE-2017-6971Alienvault ossim injection vulnerabilityAlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 allow remote authenticated users to execute arbitrary commands in a privileged context, …EPSS 16%8.4CVE-2017-6970Alienvault ossim os command injection vulnerabilityAlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 allow local users to execute arbitrary commands in a privileged context via an NfSen soc…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2016-8581), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.