Vulnerability in Bigbluebutton
CVE-2020-28954
web/controllers/ApiController.groovy in BigBlueButton before 2.2.29 lacks certain parameter sanitization, as demonstrated by accepting control characters in a user name.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.013 (68.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/bigbluebutton/bigbluebutton/compare/v2.2.28...v2.2.29 (Third Party Advisory, Release Notes)
- github.com/bigbluebutton/bigbluebutton/commit/e59bcd0c33a6a3203c011faa8823ba2ca… (Patch, Third Party Advisory)
- github.com/bigbluebutton/bigbluebutton/issues/10818 (Third Party Advisory)
- github.com/bigbluebutton/bigbluebutton/commit/5c911ddeec4493f40f42e2f137800ed46… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28954?
- CVE-2020-28954 is a medium-severity vulnerability in Bigbluebutton, classified under Improper Encoding or Escaping of Output. CVSS score: 5.3/10. Published 2020-11-19.
- How severe is CVE-2020-28954?
- Medium severity. CVSS v3 base score is 5.3 out of 10.