Skip to content
Fencer Vulns
high 8.7

CVE-2022-21690 json

Cross-Site Scripting in Onionshare

published 2022-01-18 4 y ago modified 2026-06-17 4 mo ago also GHSA-ch22-x2v3-v6vq , PYSEC-2022-41 , EUVD-2022-0181

cvss
8.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi onionshare-cli 2.5
  • onionshare onionshare 2.5
  • onionshare Debian 14, Debian 13, Debian 12 2.5-1

debian advisories DEBIAN-CVE-2022-21690

  • python-onionshare openSUSE Tumbleweed 2.5-1.1
  • python3-onionshare openSUSE Tumbleweed 2.6-4.1

opensuse advisories openSUSE-SU-2024:11983-1openSUSE-SU-2024:13635-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-21690 updated cvss 5.4

onionshare: cross site scripting

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/onionshare/onionshare/security/advisories/GHSA-ch22-x2v3-v6vq referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub 3.1 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi onionshare-cli
<2.5
2.5

Affected products

  • onionshare onionshare

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.