---
id: CVE-2026-110907
title: >-
  Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 mishandles
  tokens
summary: >-
  Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 mishandles
  tokens. A token is a small placeholder string (like [node:title] or
  [user:name]) used to automatically insert dynamic data into text. A browser is
  provided for se…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-669
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T03:17:10.640'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110907'
references:
  - url: 'https://backdropcms.org/security/backdrop-sa-core-2026-009'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T03:30:12.928Z'
vendor: BackdropCMS
product: Backdrop
affected:
  - Backdrop >= 1.35.0 < 1.35.2
  - Backdrop >= 1.34.0 < 1.34.6
---

## Overview

Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 mishandles tokens. A token is a small placeholder string (like [node:title] or [user:name]) used to automatically insert dynamic data into text. A browser is provided for selecting tokens by type. The product doesn't sufficiently limit access to the types of tokens that are available in the token browser. The names of the individual tokens are adequately protected.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.