{"id":"CVE-2020-25820","aliases":["EUVD-2020-18456","GHSA-5mrj-23w8-w7hx"],"status":"published","title":"BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF...","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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.10482,"percentile":0.95794,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-918"],"published":"2020-10-21T13:01:48Z","modified":"2026-10-20T10:52:54Z","exploits":[{"source":"exploitdb","id":"EDB-49070","title":"BigBlueButton 2.2.25 - Arbitrary File Disclosure and Server-Side Request Forgery","type":"webapps","platform":"multiple","date":"2020-11-18","url":"https://www.exploit-db.com/exploits/49070"}],"products":[{"vendor":"bigbluebutton","product":"bigbluebutton"}],"references":[{"url":"https://www.redteam-pentesting.de/advisories/rt-sa-2020-005","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-Disclosure-Server-Side-Request-Forgery.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79c001086b250e435","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25820"},{"url":"https://github.com/advisories/GHSA-5mrj-23w8-w7hx"}],"sources":{"cve":[{"id":"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.","status":"published","published":"2020-10-21T13:01:48Z","modified":"2024-08-04T15:40:36.978Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2020-18456","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.","status":"published","published":"2020-10-21T13:01:48Z","modified":"2024-08-04T15:40:36Z","updated_at":"2026-11-03T03:07:16.74035Z"}],"ghsa":[{"id":"GHSA-5mrj-23w8-w7hx","title":"BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF...","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.","status":"published","published":"2022-05-24T17:31:44Z","modified":"2023-01-29T05:04:59Z","cwes":["CWE-918"],"updated_at":"2026-11-02T14:45:41.213171Z"}],"nvd":[{"id":"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.","status":"published","published":"2020-10-21T13:15:12.96Z","modified":"2026-06-17T03:07:20.637Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:06:20.704992Z"}],"osv":[{"id":"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.","status":"published","published":"2020-10-21T13:15:12.96Z","modified":"2026-10-20T10:52:54.745567021Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:15.879068Z"}]}}