Improper input validation in Onionshare
CVE-2022-21696
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 it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Onionshare — versions < 2.5
Weakness classification (CWE)
References
- github.com/onionshare/onionshare/security/advisories/GHSA-68vr-8f46-vc9f (Third Party Advisory)
- github.com/onionshare/onionshare/releases/tag/v2.5 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-21696?
- CVE-2022-21696 is a medium-severity vulnerability in Onionshare, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2022-01-18.
- How severe is CVE-2022-21696?
- Medium severity. CVSS v3 base score is 4.3 out of 10.