Description
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.
Published: 2026-10-26
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-425
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 26 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Frappe Builder 1.33.0 before 1.36.0 Missing Authorization via improve_prompt
First Time appeared Frappe
Frappe builder
Weaknesses CWE-862
CPEs cpe:2.3:a:frappe:builder:*:*:*:*:*:*:*:*
Vendors & Products Frappe
Frappe builder
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-26T16:17:17.612Z

Reserved: 2026-10-23T11:13:54.116Z

Link: CVE-2026-115718

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-26T12:17:05.387

Modified: 2026-10-26T17:17:17.487

Link: CVE-2026-115718

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-26T11:40:00Z

Links: CVE-2026-115718 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T08:30:13Z

Weaknesses
  • CWE-425

    Direct Request ('Forced Browsing')

  • CWE-862

    Missing Authorization