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CVE-2026-110907

Quick assessment

Affected
BackdropCMS Backdrop
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Backdrop CMS Core 1.35.x（1.35.2 之前的版本）以及 1.34.x（1.34.6 之前的版本）在处理令牌（token）时存在缺陷。令牌是一种小型占位符字符串（例如 [node:title] 或 [user:name]），用于自动将动态数据插入到文本中。该系统提供了一个浏览器界面，供用户按类型选择令牌。然而，产品未能充分限制令牌浏览器中可用令牌类型的访问权限。尽管各个令牌名称本身已得到充分保护，但仍存在令牌类型访问控制不足的问题。

CVSS 7.5 · High EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 2

VendorProduct Version RangeStatus
BackdropCMS Backdrop 1.35.0< 1.35.2 affected
1.34.0< 1.34.6 affected
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I. Basic Information for CVE-2026-110907

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在范围间的资源转移不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
BackdropCMS Backdrop 1.35.0 ~ 1.35.2 -

II. Public POCs for CVE-2026-110907

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III. Intelligence Information for CVE-2026-110907

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Other References for CVE-2026-110907 (1)

IV. Related Vulnerabilities

Same product: Backdrop
Same vendor: BackdropCMS
Same weakness: CWE-669

V. Comments for CVE-2026-110907

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