CVE-2019-25277 FaceSentry Access Control System 6.4.8 Reflected Cross-Site Scripting via pluginInstall.php

Medium 5.1 Published 7 Jan 2026 Updated 24 May 2026

Attackers can inject malicious scripts via the msg parameter in pluginInstall.php to steal credentials and conduct phishing attacks.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-25277?

CVE-2019-25277 is a medium-severity cross-site scripting vulnerability in iWT Ltd. FaceSentry Access Control System, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2019-25277?

It affects 1 product.

Products include Iwt Facesentry Access Control System Firmware.

How do I fix CVE-2019-25277?

No fix has been published for CVE-2019-25277 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-25277 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25277 exists.

Sources

Also known as GHSA-pw9x-q8pw-5v65.