Wiz
Vulnerability DatabaseCVE-2020-21219

CVE-2020-21219: 
NixOS vulnerability analysis and mitigation

Overview

Cross Site Scripting (XSS) vulnerability exists in Netgate pfSense 2.4.4-Release-p3 and Netgate ACME package 0.6.3 that allows remote attackers to run arbitrary code via the RootFolder field to acmecertificateedit.php page of the ACME package (NVD).

Technical details

The vulnerability is classified as a Cross-Site Scripting (XSS) issue with a CVSS v3.1 Base Score of 6.1 MEDIUM (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). The vulnerability stems from improper neutralization of input during web page generation in the ACME package's certificate editing functionality (NVD).

Impact

If successfully exploited, this vulnerability could allow attackers to execute arbitrary code in the context of the user's browser session, potentially leading to unauthorized access to sensitive information or manipulation of the ACME package's functionality (NVD).

Mitigation and workarounds

A patch has been released that prevents ACME output from being interpreted as HTML. The fix includes modifying the code to use text() instead of html() for output handling and proper escaping of command output. Users should upgrade to ACME package version 0.6.3-1 or later (FreeBSD Ports).

Additional resources

Source: This report was generated using AI

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-61619HIGH7.5
  • NixOSNixOS
  • android
NoNoDec 01, 2025
CVE-2025-61618HIGH7.5
  • NixOSNixOS
  • android
NoNoDec 01, 2025
CVE-2025-61617HIGH7.5
  • NixOSNixOS
  • android
NoNoDec 01, 2025
CVE-2025-61610HIGH7.5
  • NixOSNixOS
  • android
NoNoDec 01, 2025
CVE-2025-65622MEDIUM5.4
  • PHPPHP
  • snipe-it
NoYesDec 01, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo