A persistent XSS vulnerability exists in the User-Agent header of the login process of…
Priority MEDIUM 44CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
EPSS 0.17058 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:alienvault:open_source_security_information_and_event_management:*:*:*:*:*:*:*:* | up to 5.3.1 | Vulnerable | Alienvault |
| cpe:2.3:a:alienvault:unified_security_management:*:*:*:*:*:*:*:* | up to 5.3.1 | Vulnerable | Alienvault |
- cpe:2.3:a:alienvault:open_source_security_information_and_event_management:*:*:*:*:*:*:*:* Versions up to 5.3.1 Vulnerable ·Alienvault
- cpe:2.3:a:alienvault:unified_security_management:*:*:*:*:*:*:*:* Versions up to 5.3.1 Vulnerable ·Alienvault
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-8581
- 2026-10-03 Alias added: GHSA-pf5m-28cv-hpp4
References
More Alienvault Open Source Security Information And Event Management vulnerabilities
- TI-2016-07050 A vulnerability exists in gauge.php of AlienVault OSSIM and USM before 5.3.2 that allows… CVSS 3.0CRITICAL 9.8
- TI-2016-07048 PHP object injection vulnerabilities exist in multiple widget files in AlienVault OSSIM… CVSS 3.0CRITICAL 9.8
- TI-2016-07051 Multiple GET parameters in the vulnerability scan scheduler of AlienVault OSSIM and USM… CVSS 3.0MEDIUM 6.1
- TI-2016-05936 Cross-site scripting (XSS) vulnerability in AlienVault OSSIM before 5.3 and USM before… CVSS 3.0MEDIUM 5.4
Sources
- CVE-2016-8581 · CVE Program
- CVE-2016-8581 · NVD
- FIRST EPSS
- GHSA-pf5m-28cv-hpp4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences