{"id":"CVE-2019-17268","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-17268","generatedAt":"2026-10-27T23:42:54.610Z","title":"The omniauth-weibo-oauth2 gem 0.4.6 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party.","description":"The omniauth-weibo-oauth2 gem 0.4.6 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Versions through 0.4.5, and 0.5.1 and later, are unaffected.","published":"2020-02-07T14:15:11.000Z","lastModified":"2026-06-17T02:23:37.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-94"],"affected":["omniauth-weibo-oauth2 project/omniauth-weibo-oauth2"],"epss":{"score":0.02437,"percentile":0.84167,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://diff.coditsu.io/diffs/09a05c37-1b34-49e1-ac94-d4dda40d1ad1#d2h-971595","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/beenhero/omniauth-weibo-oauth2/issues/36","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://diff.coditsu.io/diffs/09a05c37-1b34-49e1-ac94-d4dda40d1ad1#d2h-971595","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/beenhero/omniauth-weibo-oauth2/issues/36","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-17268","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}