CVE-2026-115718
Frappe Builder 1.33.0 before 1.36.0 Missing Authorization via improve_prompt
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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. 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.
| CWE | CWE-862 |
| Vendor | frappe |
| Product | builder |
| Published | Oct 26, 2026 |
| Last Updated | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
frappe / builder
1.33.0 < 1.36.0
References
Credits
Mansurzhan Mavlankulov