CVE-2022-21690 - CVE House
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Status published High CVE-2022-21690

Cross-Site Scripting in Onionshare

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from onionshare

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CVE-2022-21696
Username spoofing in OnionShare
Medium 4.3
CVE-2022-21695
Improper Access Control in Onionshare
Medium 4.3
CVE-2022-21694
OTF-006: Broken Website Hardening Control: The CSP can be turned on or off but not configured for the specific needs of the website
Low 3.7
CVE-2022-21693
Path traversal in Onionshare
Medium 6.3
CVE-2022-21692
Improper Access Control in Onionshare
Medium 4.3

Affected Vendor

Affected Software

onionshare
Vulnerable Versions:
< 2.5

Timeline

Official Publish: January 18th, 2022
Last Modified: April 22nd, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact