CVE-2024-35191Network attack vector

Authenticated template execution via unsandboxed Twig rendering

Published May 20, 2024 · Updated Aug 2, 2024

Server-side template injection in Verbb Formie before 2.1.6 allows remote authenticated users to execute malicious Twig templates. Variables::getParsedValue passes settings such as the submission title or success message to Craft's unsandboxed renderObjectTemplate method. Control-panel permission to edit form settings is required; payloads execute when a submission is created or affected text is rendered.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in Verbb Formie before 2.1.6 allows remote authenticated users to execute malicious Twig templates. Variables::getParsedValue passes settings such as the submission title or success message to Craft's unsandboxed renderObjectTemplate method. Control-panel permission to edit form settings is required; payloads execute when a submission is created or affected text is rendered.

The record

CVE
CVE-2024-35191
Published
May 20, 2024
Updated
Aug 2, 2024
Vendor
Verbb
Product
Formie
Classifications
CWE-1336, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.1.6
  2. Affected versionversion=< 2.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Verbb · Formieversion=0 <2.1.6; version=< 2.1.6

Published CVSS scores

6.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
4.4GitHub, Inc. CNACVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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