Vulnerability DatabaseCVE-2020-11056
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CVE-2020-11056
Published:May 07, 2020
Updated:May 17, 2026
In Sprout Forms before 3.9.0, there is a potential Server-Side Template Injection vulnerability when using custom fields in Notification Emails which could lead to the execution of Twig code. This has been fixed in 3.9.0.
Affected Packages
barrelstrength/sprout-forms (PHP):
Affected version(s) >=dev-dependabot/npm_and_yarn/ajv-6.12.6 <3.9.0
Fix Suggestion:
Update to version 3.9.0
barrelstrength/sprout-base-email (PHP):
Affected version(s) >=dev-dependabot/npm_and_yarn/ajv-6.12.6 <1.2.7
Fix Suggestion:
Update to version 1.2.7
Related Resources (4)
https://github.com/barrelstrength/craft-sprout-forms/blob/v3/CHANGELOG.md#390---2020-04-09-critical
https://github.com/barrelstrength/craft-sprout-forms/security/advisories/GHSA-px8v-hxxx-2rgh
https://nvd.nist.gov/vuln/detail/CVE-2020-11056
https://github.com/barrelstrength/craft-sprout-base-email/commit/5ef759f4713ede6dbf77c9d9df9f992876e43a49
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
LOW
CVSS v3
Base Score:
7.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-74
Improper Control of Generation of Code ('Code Injection')
CWE-94
EPSS
Base Score:
0.56