Wiz
Vulnerability DatabaseCVE-2021-4263

CVE-2021-4263: 
Homebrew vulnerability analysis and mitigation

Overview

A cross-site scripting (XSS) vulnerability has been identified in leanote version 2.6.1, specifically affecting the 'define' function within the file 'public/js/plugins/history.js'. The vulnerability was assigned identifier CVE-2021-4263 and has been classified as problematic. The issue allows remote attackers to manipulate the 'content' argument, potentially leading to cross-site scripting attacks (NVD).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 6.1 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. The weakness is categorized as CWE-79 (Improper Neutralization of Input During Web Page Generation). A patch has been released with the commit identifier 0f9733c890077942150696dcc6d2b1482b7a0a19 (GitHub Patch).

Impact

The vulnerability allows attackers to execute cross-site scripting attacks through the manipulation of content arguments. This can lead to potential information disclosure and integrity compromises, though the impact is considered limited as indicated by the CVSS scoring (NVD).

Mitigation and workarounds

A fix has been implemented through a patch (commit 0f9733c890077942150696dcc6d2b1482b7a0a19) which addresses the XSS vulnerability by implementing proper content trimming. It is recommended to apply this patch to affected installations (GitHub Patch).

Additional resources

Source: This report was generated using AI

Related Homebrew vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-14330CRITICAL9.8
  • NixOSNixOS
  • cpe:2.3:a:mozilla:firefox_esr
NoYesDec 09, 2025
CVE-2025-14329HIGH8.8
  • NixOSNixOS
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
NoYesDec 09, 2025
CVE-2025-14333HIGH8.1
  • NixOSNixOS
  • firefox
NoYesDec 09, 2025
CVE-2025-14332HIGH7.3
  • NixOSNixOS
  • firefox
NoYesDec 09, 2025
CVE-2025-14331MEDIUM6.5
  • NixOSNixOS
  • firefox
NoYesDec 09, 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