{"id":"CVE-2025-66300","aliases":["GHSA-p4ww-mcp9-j6f2"],"url":"https://o3.security/vulnerability/CVE-2025-66300","summary":"Grav is vulnerable to Arbitrary File Read","details":"### Summary\n\n- A low privilege user account with page editing privilege can read any server files using \"Frontmatter\" form.\n- This includes Grav user account files - /grav/user/accounts/*.yaml. This file stores hashed user password, 2FA secret, and the password reset token.\n- This can allow an adversary to compromise any registered account by resetting a password for a user to get access to the password reset token from the file or by cracking the hashed password.\n\n### Details\n_The vulnerability can be found in /user/plugins/form/templates/forms/fields/display/display.html.twig_\n![image](https://github.com/getgrav/grav/assets/28057767/953dbdf1-310f-4c8e-866c-8470d70cc11d)\n\n\n### PoC\n1.\tThis PoC was conducted on Grav CMS version 1.7.46 and Admin Plugin version 1.10.46\n \n![image](https://github.com/getgrav/grav/assets/28057767/6c8607d6-cea3-4699-8a5a-8a04d047676f)\n\n2.\tgo to “http://grav.local/admin/pages” then create new page with “Page Template” option set to “Form”.\n \n![image](https://github.com/getgrav/grav/assets/28057767/451fe8bc-2e2e-4f8a-a548-385aca6d5504)\n\n3.\tThen go to “Expert” and on Frontmatter input box used to following form template.\n\n![image](https://github.com/getgrav/grav/assets/28057767/9e44758a-021a-45fd-9e26-03abbf8095ef)\n\n4.\tSave page and go the preview or published page you will see the content of “/etc/passwd” file on the server.\n \n![image](https://github.com/getgrav/grav/assets/28057767/94dc2363-10e1-4e74-81e4-6c7a09db4dff)\n\n\n\n### Impact\nThis can allow a low privileged user to perform a full account takeover of other registered users including Administrators. This can also allow an adversary to read any file on the web server. And Due to insufficient permission verification , user who can write a page also can use frontmatter feature using this IDOR vulnerability [PoC IDOR](https://www.youtube.com/watch?v=EU1QA0idoWE&ab_channel=%EA%B9%80%EC%A2%85%EB%AF%BC) mention in [CVE-2024-2792](https://github.com/getgrav/grav/security/advisories/GHSA-f6g2-h7qv-3m5v)","published":"2025-12-01T21:19:00.744Z","modified":"2026-08-12T03:51:27.771229818Z","cvss":{"score":8.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"getgrav/grav","fixedVersion":"1.8.0-beta.27"}],"fix":{"url":"https://github.com/getgrav/grav/commit/ed640a13143c4177af013cf001969ed2c5e197ee","label":"getgrav/grav@ed640a1"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66300.json"},{"type":"ADVISORY","url":"https://github.com/getgrav/grav/security/advisories/GHSA-p4ww-mcp9-j6f2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66300"},{"type":"FIX","url":"https://github.com/getgrav/grav/commit/ed640a13143c4177af013cf001969ed2c5e197ee"},{"type":"PACKAGE","url":"https://github.com/getgrav/grav"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:27.771229818Z"}}