{"id":"GHSA-8vp7-8q4w-vv7m","title":"Duplicate Advisory: Grav: UserInterface offsetget/offsetexists allow-listed in Twig sandbox let editor-authored content leak hashed_password and 2FA secrets via offsetGet()","summary":"Duplicate Advisory: Grav: UserInterface offsetget/offsetexists allow-listed in Twig sandbox let editor-authored content leak hashed_password and 2FA secrets via offsetGet()","severity":"high","cvss":6.5,"cwe":["CWE-522"],"vendor":"getgrav","product":"getgrav/grav","ecosystem":"composer","affected":["getgrav/grav < 2.0.16"],"published":"2026-08-25","updated":"2026-09-17","sourceUpdated":"2026-09-17T20:27:14Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-8vp7-8q4w-vv7m","references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-3jhr-mxmx-38cx"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76839"},{"url":"https://www.vulncheck.com/advisories/grav-before-information-disclosure-via-offsetget"},{"url":"https://github.com/advisories/GHSA-8vp7-8q4w-vv7m"}],"tags":["ghsa","composer"],"ingestedAt":"2026-09-17T20:28:02.776Z","slug":"GHSA-8vp7-8q4w-vv7m","body":"## Overview\n\n### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-3jhr-mxmx-38cx. This link is maintained to preserve external references.\n\n### Original Description\nGrav before 2.0.16 allows sandboxed Twig templates to access sensitive User fields through allow-listed offsetGet() and offsetexists() methods that lack field filtering. Attackers with page-edit permissions can call offsetGet() on User objects to extract hashed passwords and 2FA secrets, enabling offline password cracking and authentication bypass.\n\n## Affected packages\n\n- `getgrav/grav < 2.0.16`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}