CVE-2020-11064: Typo3/cms core Cross-Site Scripting Vulnerability
MODERATECVE-2020-11064 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves cross-site scripting in typo3 cms form engine. Remediation is available by upgrading affected packages to version 9.5.17, 10.4.2.
CVE-2020-11064 at a Glance
Security Impact
CVSS: 5.4
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:R/S:C/C:L/I:L/A:N).
How to Fix CVE-2020-11064
To remediate this vulnerability, upgrade all affected Typo3/cms core 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 typo3/cms-core to 9.5.17Upgrade typo3/cms-core to 10.4.2Upgrade typo3/cms to 10.4.2Upgrade typo3/cms to 9.5.17Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for typo3/cms-coreHow to Check if You Are Affected
To determine whether your application is affected by CVE-2020-11064, inspect your project dependencies for Typo3/cms core:
inspect dependencies for typo3/cms-coreAnalyze the terminal output to locate any version of Typo3/cms core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.5.17), 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Typo3/cms core, 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-2020-11064 Affected Typo3/cms core Versions
4 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
typo3/cms-core
|
Packagist |
≥ 9.0.0
< 9.5.17
|
9.5.17
|
|
typo3/cms-core
|
Packagist |
≥ 10.0.0
< 10.4.2
|
10.4.2
|
|
typo3/cms
|
Packagist |
≥ 10.0.0
< 10.4.2
|
10.4.2
|
|
typo3/cms
|
Packagist |
≥ 9.0.0
< 9.5.17
|
9.5.17
|
References
Frequently Asked Questions
What is CVE-2020-11064?
Which Typo3/cms core versions are affected?
What version fixes CVE-2020-11064?
Is typo3/cms-core affected?
Is typo3/cms affected?
What is the CVSS score of CVE-2020-11064?
What CWE is associated with CVE-2020-11064?
How can I check Packagist dependencies for CVE-2020-11064?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-43gj-mj2w-wh46",
"modified" : "2021-01-08T20:16:50Z",
"published" : "2020-05-13T23:17:48Z",
"aliases" : [ "CVE-2020-11064" ],
"summary" : "Cross-Site Scripting in TYPO3 CMS Form Engine",
"details" : "In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.2, it has been discovered that HTML `placeholder` attributes containing data of other database records are vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability.\n\nUpdate to TYPO3 versions 9.5.17 or 10.4.2 that fix the problem described.\n\n### References\n* https://typo3.org/security/advisory/typo3-core-sa-2020-002",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.5.17"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "10.0.0"
}, {
"fixed" : "10.4.2"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "10.0.0"
}, {
"fixed" : "10.4.2"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "typo3/cms"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "9.0.0"
}, {
"fixed" : "9.5.17"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-43gj-mj2w-wh46"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-11064"
}, {
"type" : "WEB",
"url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11064.yaml"
}, {
"type" : "WEB",
"url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11064.yaml"
}, {
"type" : "WEB",
"url" : "https://typo3.org/security/advisory/typo3-core-sa-2020-002"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-79" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2020-05-13T22:54:40Z",
"nvd_published_at" : null
}
}