CVE-2020-11056

Name: CVE-2020-11056
Creator: NVD / NIST
Published: 2020-05-07T21:15:11.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.3/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2020-11056 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. 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.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS Probability

1.03%

59.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Barrelstrengthdesign	Sprout Forms	< 3.9.0

References

https://github.com/barrelstrength/craft-sprout-forms/blob/v3/CHANGELOG.md#390---2020-04-09-criticalRelease Notes
https://github.com/barrelstrength/craft-sprout-forms/security/advisories/GHSA-px8v-hxxx-2rghThird Party Advisory
https://github.com/barrelstrength/craft-sprout-forms/blob/v3/CHANGELOG.md#390---2020-04-09-criticalRelease Notes
https://github.com/barrelstrength/craft-sprout-forms/security/advisories/GHSA-px8v-hxxx-2rghThird Party Advisory

Timeline

Published: May 7, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11056?

How severe is CVE-2020-11056?

CVE-2020-11056 has a CVSS score of 6.3/10 (MEDIUM severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11056?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11056?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST