{"id":"CVE-2023-33175","aliases":["GHSA-hh7j-pg39-q563","PYSEC-2026-555"],"url":"https://o3.security/vulnerability/CVE-2023-33175","summary":"ToUI allows user-specific variables to be shared between users","details":"### Impact\nWebsites that use `Website.user_vars` property in versions.\n\n### Patches\nIt affects versions v2.0.1 to v2.4.0. Please upgrade to v2.4.1\n\n### Workarounds\nDo not use `Website.user_vars` in websites when using versions v2.0.1 to v2.4.0. Also, do not use `Website.signin_user()` in version v2.4.0 only.\n\n### Explanation\nToUI is using Flask-Caching (SimpleCache) to store user variables. My misunderstanding was that these caches are stored in the client's browser, but it seems that these are stored in the server side.\n","published":"2023-05-30T04:31:36.503Z","modified":"2026-10-28T02:30:45.083196797Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"toui","fixedVersion":"2.4.1"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/mubarakalmehairbi/ToUI/releases/tag/v2.4.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33175.json"},{"type":"ADVISORY","url":"https://github.com/mubarakalmehairbi/ToUI/security/advisories/GHSA-hh7j-pg39-q563"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-33175"},{"type":"PACKAGE","url":"https://github.com/mubarakalmehairbi/ToUI"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:45.083196797Z"}}