Auth bypass in Onionshare
CVE-2022-21695
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 authenticated users (or unauthenticated in public mode) can send messages without being visible in the list of chat participants. This issue has been resolved in version 2.5.
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:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (56.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Onionshare — versions < 2.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/onionshare/onionshare/releases/tag/v2.5 (Third Party Advisory, Release Notes)
- github.com/onionshare/onionshare/security/advisories/GHSA-99p8-9p2c-49j4 (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-21695?
- CVE-2022-21695 is a medium-severity vulnerability in Onionshare, classified under Improper Authentication. CVSS score: 4.3/10. Published 2022-01-18.
- How severe is CVE-2022-21695?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2022-21695 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.