{"action":"Upgrade flask-security-too to 3.4.5 or later.","affected":[{"fixed":"3.4.5","introduced":"3.3.0"}],"component":"flask-security-too","cve_ids":["CVE-2021-21241"],"ecosystem":"PyPI","epss":0.00928,"exploited":false,"fixed_versions":["3.4.5"],"ghsa_id":"GHSA-hh7m-rx4f-4vpv","id":"tcs_01M5KFKP2XSNW71MY037HB36MT","modified_at":"2026-03-13T22:16:07.774320Z","published_at":"2021-01-11T20:38:28Z","references":["https://osv.dev/vulnerability/GHSA-hh7m-rx4f-4vpv","https://nvd.nist.gov/vuln/detail/CVE-2021-21241","https://github.com/pypa/advisory-database/tree/main/vulns/flask-security-too/PYSEC-2021-91.yaml","https://pypi.org/project/Flask-Security-Too","https://web.archive.org/web/20210118165844/https://github.com/Flask-Middleware/flask-security/releases/tag/3.4.5","https://web.archive.org/web/20210118165958/https://github.com/Flask-Middleware/flask-security/commit/6d50ee9169acf813257c37b75babe9c28e83542a","https://web.archive.org/web/20210118170445/https://github.com/Flask-Middleware/flask-security/commit/61d313150b5f620d0b800896c4f2199005e84b1f","https://web.archive.org/web/20210118170502/https://github.com/Flask-Middleware/flask-security/security/advisories/GHSA-hh7m-rx4f-4vpv","https://web.archive.org/web/20211207005640/https://github.com/Flask-Middleware/flask-security/pull/422"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"GHSA-hh7m-rx4f-4vpv","url":"https://osv.dev/vulnerability/GHSA-hh7m-rx4f-4vpv"}],"summary":"CSRF can expose users authentication token"}