How to fix CVE-2019-25277?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is PHP affected by CVE-2019-25277?

Organizations using FaceSentry Access Control System 6.4.8 should be aware of moderate risk from CVE-2019-25277, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

CVE-2019-25277

MEDIUM

2026-01-08 [email protected]

6.1

CVSS 3.1

CVSS Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 22, 2026 - 13:47 vuln.today

Public exploit code

CVE Published

Jan 08, 2026 - 00:15 nvd

MEDIUM 6.1

Description

FaceSentry Access Control System 6.4.8 contains a cross-site scripting vulnerability in the 'msg' parameter of pluginInstall.php that allows attackers to inject malicious scripts. Attackers can exploit the unvalidated input to execute arbitrary JavaScript in victim browsers, potentially stealing authentication credentials and conducting phishing attacks.

Analysis

Facesentry Access Control System Firmware versions up to 5.7.0 is affected by cross-site scripting (xss) (CVSS 6.1).

Technical Context

This vulnerability (CWE-79: Cross-site Scripting (XSS)) affects Facesentry Access Control System Firmware. FaceSentry Access Control System 6.4.8 contains a cross-site scripting vulnerability in the 'msg' parameter of pluginInstall.php that allows attackers to inject malicious scripts. Attackers can exploit the unvalidated input to execute arbitrary JavaScript in victim browsers, potentially stealing authentication credentials and conducting phishing attacks.

Affected Products

Vendor: Iwt. Product: Facesentry Access Control System Firmware. Versions: up to 5.7.0.

Remediation

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +30

POC: +20

CVE-2019-25277 vulnerability details – vuln.today

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CVE-2019-25277

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CVE-2019-25277

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

Remediation

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External POC / Exploit Code