{"id":"CVE-2026-115718","title":"Frappe Builder 1.33.0 before 1.36.0 Missing Authorization via improve_prompt","summary":"Frappe Builder versions 1.33.0 before1.36.0 contain a missing authorization vulnerability in the improve_prompt endpoint that allows any authenticated non-Guest session to invoke LLM completions without proper permission checks. Attacker…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-862"],"vendor":"frappe","product":"builder","affected":["builder >= 1.33.0 < 1.36.0"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T11:45:39.586Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115718","references":[{"url":"https://github.com/frappe/builder/releases/tag/v1.36.0","label":"Vendor Patch"},{"url":"https://github.com/frappe/builder/security/advisories/GHSA-58mj-c563-p78w","label":"Vendor Advisory"},{"url":"https://www.vulncheck.com/advisories/frappe-builder-before-missing-authorization-via-improve-prompt","label":"VulnCheck Advisory: Frappe Builder 1.33.0 before 1.36.0 Missing Authorization via improve_prompt"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T12:26:18.479Z","slug":"CVE-2026-115718","body":"## Overview\n\nFrappe Builder versions 1.33.0 before1.36.0 contain a missing authorization vulnerability in the improve_prompt endpoint that allows any authenticated non-Guest session to invoke LLM completions without proper permission checks. Attackers can call the improve_prompt API to leverage the site owner's stored OpenRouter API key via resolve_api_key, consuming paid LLM credits and effectively turning the site into a free LLM proxy.\n\n## Affected\n\n- `builder >= 1.33.0 < 1.36.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}