{"id":"CVE-2021-29435","aliases":["EUVD-2021-0831","GHSA-h8hx-2c5r-32cf"],"status":"published","title":"Cross-Site Request Forgery (CSRF) in trestle-auth","description":"trestle-auth is an authentication plugin for the Trestle admin framework. A vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials. The vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00663,"percentile":0.51972,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-352"],"published":"2021-04-13T17:00:21Z","modified":"2026-10-20T10:53:43Z","fixes":[{"ecosystem":"RubyGems","package":"trestle-auth","fixed_in":["0.4.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"trestle-auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.4.0"},{"fixed":"0.4.2"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"trestle-auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.4.0"},{"fixed":"0.4.2"}]}],"versions":["0.4.0","0.4.1"]}],"products":[{"vendor":"trestle-auth_project","product":"trestle-auth"},{"vendor":"trestleadmin","product":"trestle-auth"}],"references":[{"url":"https://github.com/TrestleAdmin/trestle-auth/security/advisories/GHSA-h8hx-2c5r-32cf","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/TrestleAdmin/trestle-auth/commit/cb95b05cdb2609052207af07b4b8dfe3a23c11dc","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://rubygems.org/gems/trestle-auth","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29435","tags":["advisory"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/trestle-auth/CVE-2021-29435.yml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-h8hx-2c5r-32cf"}],"sources":{"cve":[{"id":"CVE-2021-29435","title":"Cross-Site Request Forgery (CSRF) in trestle-auth","description":"trestle-auth is an authentication plugin for the Trestle admin framework. A vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials. The vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.","status":"published","published":"2021-04-13T17:00:21Z","modified":"2024-08-03T22:02:51.93Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-0831","description":"trestle-auth is an authentication plugin for the Trestle admin framework. A vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials. The vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.","status":"published","published":"2021-04-13T17:00:21Z","modified":"2024-08-03T22:02:51Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:24:45.541615Z"}],"ghsa":[{"id":"GHSA-h8hx-2c5r-32cf","title":"Cross-Site Request Forgery (CSRF) in trestle-auth","description":"### Impact\nA vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials.\n\n### Patches\nThe vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [trestle-auth](https://github.com/TrestleAdmin/trestle-auth/issues)\n* Email the maintainer at [sam@sampohlenz.com](mailto:sam@sampohlenz.com)","status":"published","published":"2021-04-13T17:01:50Z","modified":"2023-05-04T20:00:19Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:36:52.310293Z"}],"nvd":[{"id":"CVE-2021-29435","description":"trestle-auth is an authentication plugin for the Trestle admin framework. A vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials. The vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.","status":"published","published":"2021-04-13T20:15:21.907Z","modified":"2026-06-17T03:47:38.177Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:06:51.610648Z"}],"osv":[{"id":"CVE-2021-29435","description":"trestle-auth is an authentication plugin for the Trestle admin framework. A vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials. The vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.","status":"published","published":"2021-04-13T20:15:21.907Z","modified":"2026-10-20T10:53:43.039344991Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"GHSA-h8hx-2c5r-32cf","title":"Cross-Site Request Forgery (CSRF) in trestle-auth","description":"### Impact\nA vulnerability in trestle-auth versions 0.4.0 and 0.4.1 allows an attacker to create a form that will bypass Rails' built-in CSRF protection when submitted by a victim with a trestle-auth admin session. This potentially allows an attacker to alter protected data, including admin account credentials.\n\n### Patches\nThe vulnerability has been fixed in trestle-auth 0.4.2 released to RubyGems.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [trestle-auth](https://github.com/TrestleAdmin/trestle-auth/issues)\n* Email the maintainer at [sam@sampohlenz.com](mailto:sam@sampohlenz.com)","status":"published","published":"2021-04-13T17:01:50Z","modified":"2026-07-08T06:29:41.235308895Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:46:48.920784Z"}]}}