CVE-2020-11056: Barrelstrength/sprout base email Potential Code Injection Vulnerability
CRITICALCVE-2020-11056 is a CRITICAL (CVSS 7.4) potential code injection vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Barrelstrength/sprout base email libraries in the Packagist ecosystem. The issue involves potential code injection in sprout forms. Remediation is available by upgrading affected packages to version 1.2.7, 3.9.0.
CVE-2020-11056 at a Glance
Security Impact
CVSS: 7.4
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L).
How to Fix CVE-2020-11056
To remediate this vulnerability, upgrade all affected Barrelstrength/sprout base email dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade barrelstrength/sprout-base-email to 1.2.7Upgrade barrelstrength/sprout-forms to 3.9.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for barrelstrength/sprout-base-emailHow to Check if You Are Affected
To determine whether your application is affected by CVE-2020-11056, inspect your project dependencies for Barrelstrength/sprout base email:
inspect dependencies for barrelstrength/sprout-base-emailAnalyze the terminal output to locate any version of Barrelstrength/sprout base email in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.7), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Barrelstrength/sprout base email, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2020-11056 Affected Barrelstrength/sprout base email Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
barrelstrength/sprout-base-email
|
Packagist |
< 1.2.7
|
1.2.7
|
|
barrelstrength/sprout-forms
|
Packagist |
< 3.9.0
|
3.9.0
|
References
Frequently Asked Questions
What is CVE-2020-11056?
Which Barrelstrength/sprout base email versions are affected?
What version fixes CVE-2020-11056?
Is barrelstrength/sprout-base-email affected?
Is barrelstrength/sprout-forms affected?
What is the CVSS score of CVE-2020-11056?
What CWE is associated with CVE-2020-11056?
How can I check Packagist dependencies for CVE-2020-11056?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-px8v-hxxx-2rgh",
"modified" : "2021-10-27T17:00:42Z",
"published" : "2020-05-08T21:00:02Z",
"aliases" : [ "CVE-2020-11056" ],
"summary" : "Potential Code Injection in Sprout Forms",
"details" : "### Impact\n\nA potential Server-Side Template Injection vulnerability exists in Sprout Forms which could lead to the execution of Twig code.\n\n### Patches\n\nThe problem is fixed in`barrelstrength/sprout-forms:v3.9.0` which upgrades to `barrelstrength/sprout-base-email:v1.2.7`\n\n### Workarounds\n\nUsers unable to upgrade should update any Notification Emails to use the \"Basic Notification (Sprout Email)\" template and avoid using the \"Basic Notification (Sprout Forms)\" template or any custom templates that display Form Fields.\n\n### References\n\n- See the release notes in the [CHANGELOG](https://github.com/barrelstrength/craft-sprout-forms/blob/v3/CHANGELOG.md#390---2020-04-09-critical)\n- Credits to Paweł Hałdrzyński, Daniel Kalinowski from [ISEC.PL](https://isec.pl/) for discovery and responsible disclosure\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in the [Sprout Forms repo](https://github.com/barrelstrength/craft-sprout-forms/issues)\n* Email us at [sprout@barrelstrengthdesign.com](mailto:sprout@barrelstrengthdesign.com)",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "barrelstrength/sprout-base-email"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.2.7"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "barrelstrength/sprout-forms"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "3.9.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/barrelstrength/craft-sprout-forms/security/advisories/GHSA-px8v-hxxx-2rgh"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-11056"
}, {
"type" : "WEB",
"url" : "https://github.com/barrelstrength/craft-sprout-base-email/commit/5ef759f4713ede6dbf77c9d9df9f992876e43a49"
}, {
"type" : "WEB",
"url" : "https://github.com/barrelstrength/craft-sprout-forms/blob/v3/CHANGELOG.md#390---2020-04-09-critical"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-74", "CWE-94" ],
"severity" : "CRITICAL",
"github_reviewed" : true,
"github_reviewed_at" : "2020-05-08T19:12:33Z",
"nvd_published_at" : "2020-05-07T21:15:00Z"
}
}