SSRF in Bigbluebutton
CVE-2020-25820
BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.105 (95.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Bigbluebutton
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2020-25820?
- CVE-2020-25820 is a medium-severity vulnerability in Bigbluebutton, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2020-10-21.
- How severe is CVE-2020-25820?
- Medium severity. CVSS v3 base score is 6.5 out of 10.