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

Quick assessment

Affected
verbb formie
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Formie for Craft CMS是Verbb开源的一个Craft CMS的表单插件。 Formie for Craft CMS 2.2.20之前版本和3.1.24之前版本存在安全漏洞，该漏洞源于未经验证的用户可将特制值提交到Hidden字段，这些值在提交处理期间被评估为Twig，可能导致Craft站点严重破解。

CVSS 9.8 · Critical EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
verbb formie < 2.2.20 affected
>= 3.0.0-beta.1, < 3.1.24 affected
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Formie for Craft CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Formie for Craft CMS是Verbb开源的一个Craft CMS的表单插件。 Formie for Craft CMS 2.2.20之前版本和3.1.24之前版本存在安全漏洞，该漏洞源于未经验证的用户可将特制值提交到Hidden字段，这些值在提交处理期间被评估为Twig，可能导致Craft站点严重破解。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
verbb formie < 2.2.20 -

II. Public POCs for CVE-2026-45697

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7479 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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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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