Wiz
Vulnerability DatabaseCVE-2020-18702

CVE-2020-18702: 
Python vulnerability analysis and mitigation

Overview

Cross Site Scripting (XSS) vulnerability was discovered in Quokka v0.4.0, specifically affecting the 'Username' parameter in the component 'quokka/admin/actions.py'. The vulnerability was reported on March 21, 2019, and allows remote attackers to execute arbitrary code (MITRE, NVD).

Technical details

The vulnerability exists in quokka/admin/actions.py at lines 90 and 151, where there is no proper filtering of the username parameter. The issue stems from improper neutralization of input during web page generation, classified as CWE-79. 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 (NVD).

Impact

When exploited, this vulnerability allows remote attackers to execute arbitrary web script or HTML code through the 'Username' parameter. The impact is rated as medium severity, with potential for information disclosure and user interface manipulation (NVD).

Mitigation and workarounds

The vulnerability was reported in Quokka version 0.4.0. Users should upgrade to a patched version if available. As of October 1, 2020, the Quokka repository has been archived by its owner and is now read-only (GitHub Issue).

Additional resources

Source: This report was generated using AI

Related Python vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-67748HIGH7.1
  • PythonPython
  • fickling
NoYesDec 16, 2025
CVE-2025-67747HIGH7.1
  • PythonPython
  • fickling
NoYesDec 16, 2025
CVE-2025-68113MEDIUM6.5
  • JavaScriptJavaScript
  • altcha-org/altcha
NoYesDec 16, 2025
CVE-2025-67492MEDIUM5.3
  • PythonPython
  • weblate
NoYesDec 16, 2025
CVE-2025-67715MEDIUM4.3
  • PythonPython
  • weblate
NoYesDec 16, 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