{"cve":"CVE-2019-18933","nvd":{"published":"2019-11-21T23:15:13.687","modified":"2026-06-17T02:25:36.110","status":"Modified","description":"In Zulip Server versions from 1.7.0 to before 2.0.7, a bug in the new user signup process meant that users who registered their account using social authentication (e.g., GitHub or Google SSO) in an organization that also allows password authentication could have their personal API key stolen by an unprivileged attacker, allowing nearly full access to the user's account.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":[],"references":["https://blog.zulip.org/2019/11/21/zulip-2-0-7-security-release/","https://github.com/zulip/zulip/commit/0c2cc41d2e40807baa5ee2c72987ebfb64ea2eb6","https://blog.zulip.org/2019/11/21/zulip-2-0-7-security-release/","https://github.com/zulip/zulip/commit/0c2cc41d2e40807baa5ee2c72987ebfb64ea2eb6"],"products":["zulip:zulip_server"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-18933","score":0.01352,"percentile":0.71553,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}