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CVE-2026-45697— Formie: Pre-authenticated server-side template injection in Hidden fields

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProductVersion RangeStatus
verbbformie< 2.2.20affected
>= 3.0.0-beta.1, < 3.1.24affected
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I. Basic Information for CVE-2026-45697

Vulnerability Information
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Vulnerability Title
Formie: Pre-authenticated server-side template injection in Hidden fields
Source: NVD (National Vulnerability Database)
Vulnerability Description
Formie is a Craft CMS plugin for creating forms. Prior to 2.2.20 and 3.1.24, unauthenticated users could submit crafted values into Hidden fields (with Default value → Custom) that were evaluated as Twig during submission handling, which could lead to serious compromise of the Craft site (depending on template/sandbox behavior). This vulnerability is fixed in 2.2.20 and 3.1.24.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
verbbformie < 2.2.20 -

II. Public POCs for CVE-2026-45697

#POC DescriptionSource LinkShenlong Link
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III. Intelligence Information for CVE-2026-45697

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Patches & Fixes for CVE-2026-45697 (1)

Vendor Advisories for CVE-2026-45697 (1)

Vendor Pages for CVE-2026-45697 (2)

IV. Related Vulnerabilities

Same product: formie
Same vendor: verbb
Same weakness: CWE-94

V. Comments for CVE-2026-45697

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