CVE-2026-115717

HIGH 7.7

Frappe Builder before 1.36.1 SSRF via convert_to_webp

CVSS Score

7.7

EPSS Score

0.0%

EPSS Percentile

0th

Frappe Builder versions before 1.36.1 contain a server-side request forgery vulnerability in the convert_to_webp API endpoint, which lacks the has_page_write access control applied to similar asset-ingest handlers and performs an unprotected requests.get call that follows redirects without re-validating resolved IP addresses. A low-privilege authenticated user can supply an image_url pointing to an internal address or use DNS rebinding and open redirects to make the server fetch internal network resources or cloud metadata endpoints, with successful image responses saved to a world-readable /files/ URL enabling data exfiltration or blind probing of internal hosts.

CWE	CWE-918
Vendor	frappe
Product	builder
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

frappe / builder

1.0.0 < 1.36.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/frappe/builder/releases/tag/v1.36.1 github.com: https://github.com/frappe/builder/security/advisories/GHSA-5qcg-q3jf-fjcg vulncheck.com: https://www.vulncheck.com/advisories/frappe-builder-before-ssrf-via-convert-to-webp

Credits

Mansurzhan Mavlankulov