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CVE-2022-21690— Cross-Site Scripting in Onionshare

Quick assessment

Affected
onionshare onionshare
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OnionShare是一种开源工具。用于安全且匿名地共享文件、托管网站以及使用 Tor 网络与朋友聊天。 OnionShare存在安全漏洞，该漏洞源于在受影响的版本中，被请求的URL的path参数在传递给QT前端之前没有被消毒。所有组件都使用此路径显示服务器访问历史记录。这导致在Onionshare前端有一个渲染的HTML4子集(QT RichText编辑器)。

CVSS 8.7 · High EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-21690

Vulnerability Information
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Vulnerability Title
Cross-Site Scripting in Onionshare
Source: CVE Program / CVE List V5
Vulnerability Description
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions The path parameter of the requested URL is not sanitized before being passed to the QT frontend. This path is used in all components for displaying the server access history. This leads to a rendered HTML4 Subset (QT RichText editor) in the Onionshare frontend.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
OnionShare 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OnionShare是一种开源工具。用于安全且匿名地共享文件、托管网站以及使用 Tor 网络与朋友聊天。 OnionShare存在安全漏洞，该漏洞源于在受影响的版本中，被请求的URL的path参数在传递给QT前端之前没有被消毒。所有组件都使用此路径显示服务器访问历史记录。这导致在Onionshare前端有一个渲染的HTML4子集(QT RichText编辑器)。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
onionshare onionshare < 2.5 -

II. Public POCs for CVE-2022-21690

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III. Intelligence Information for CVE-2022-21690

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Vendor Advisories for CVE-2022-21690 (1)

Same Patch Batch · onionshare · 2022-01-18 · 9 CVEs total

CVE-2022-21688 7.5 HIGH Out-of-bounds Read in Onionshare
CVE-2022-21689 7.5 HIGH Denial of Service in Onionshare
CVE-2022-21693 6.3 MEDIUM Path traversal in Onionshare
CVE-2022-21691 4.3 MEDIUM Improper Access Control in Onionshare
CVE-2022-21692 4.3 MEDIUM Improper Access Control in Onionshare
CVE-2022-21695 4.3 MEDIUM Improper Access Control in Onionshare
CVE-2022-21696 4.3 MEDIUM Username spoofing in OnionShare
CVE-2022-21694 3.7 LOW OTF-006: Broken Website Hardening Control: The CSP can be turned on or off but not configu

IV. Related Vulnerabilities

Same product: onionshare
Same vendor: onionshare
Same weakness: CWE-79

V. Comments for CVE-2022-21690

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