CVE-2019-7671

Prima Systems FlexAir devices allow Authenticated Stored XSS.

9.0 CriticalPublic exploit

Prima Systems FlexAir, Versions 2.3.38 and prior. Parameters sent to scripts are not properly sanitized before being returned to the user, which may allow an attacker to execute arbitrary code in a user’s browser session in context of an affected site.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

8.11%Down 1.5 points since Apr 14, 2021

What each source reports

NVD Score used 9.0

Record: CVE-2019-7671
CVSS 3.1: 9.0 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2019-7671
Updated: 2026-11-02

EUVDEUVD-2019-17203 No score

Record: EUVD-2019-17203
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6857-8pq4-3jcg 9.0

Prima Systems FlexAir devices allow Authenticated Stored XSS.

Prima Systems FlexAir devices allow Authenticated Stored XSS.

Record: GHSA-6857-8pq4-3jcg
CVSS 3.1: 9.0 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

Affected products

primasystems flexair

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Prima Access Control 2.3.35 - 'HwName' Persistent Cross-Site Scripting	2019-11-12

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-7671 is a critical vulnerability (CVSS 9.0) in Primasystems Flexair, published June 5, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.11%, the 94th percentile. No source names a fixed version.