Auth bypass in Onionshare
CVE-2022-21691
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 chat participants can spoof their channel leave message, tricking others into assuming they left the chatroom.
Vulnerability class: Broken Authentication
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 (50.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% 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/releases/tag/v2.5 (Third Party Advisory, Release Notes)
- github.com/onionshare/onionshare/security/advisories/GHSA-w9m4-7w72-r766 (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-21691?
- CVE-2022-21691 is a medium-severity vulnerability in Onionshare, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2022-01-18.
- How severe is CVE-2022-21691?
- Medium severity. CVSS v3 base score is 4.3 out of 10.