{"id":"PYSEC-2026-555","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","aliases":["CVE-2023-33175","GHSA-hh7j-pg39-q563"],"modified":"2026-07-01T20:23:10.286587Z","published":"2026-06-29T11:50:42.742671Z","references":[{"type":"WEB","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"},{"type":"WEB","url":"https://github.com/mubarakalmehairbi/ToUI/releases/tag/v2.4.1"},{"type":"PACKAGE","url":"https://pypi.org/project/toui"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-hh7j-pg39-q563"}],"affected":[{"package":{"name":"toui","ecosystem":"PyPI","purl":"pkg:pypi/toui"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.1"},{"fixed":"2.4.1"}]}],"versions":["2.0.1","2.1.0","2.1.1","2.2.0","2.3.0","2.4.0"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/toui/PYSEC-2026-555.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}