Medium severity6.5NVD Advisory· Published Oct 21, 2020· Updated Jun 17, 2026
CVE-2020-25820
CVE-2020-25820
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*range: <2.2.27
- (no CPE)range: <2.2.7
- BigBlueButton/BigBlueButtondescription
Patches
Vulnerability mechanics
References
5- github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79c001086b250e435nvdPatchThird Party Advisory
- packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-Disclosure-Server-Side-Request-Forgery.htmlnvdExploitThird Party Advisory
- www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.htmlnvdExploitThird Party Advisory
- github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27nvdRelease NotesThird Party Advisory
- www.redteam-pentesting.de/advisories/rt-sa-2020-005nvdThird Party Advisory
News mentions
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