UBUNTU-CVE-2021-39202

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Source
https://ubuntu.com/security/CVE-2021-39202
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-39202
Upstream
  • CVE-2021-39202
Published
2021-09-09T22:15:00Z
Modified
2026-10-17T12:55:46Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N CVSS Calculator
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.

References

Affected packages

Ubuntu:16.04:LTS
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.3+dfsg-1
4.3.1+dfsg-1
4.4+dfsg-1
4.4.1+dfsg-1
4.4.2+dfsg-1
4.4.2+dfsg-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "4.4.2+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "4.4.2+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentyfifteen",
            "binary_version":  "4.4.2+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentyfourteen",
            "binary_version":  "4.4.2+dfsg-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentysixteen",
            "binary_version":  "4.4.2+dfsg-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:18.04:LTS
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.8.2+dfsg-2
4.8.3+dfsg-1
4.9.1+dfsg-1
4.9.2+dfsg-1
4.9.4+dfsg-1
4.9.5+dfsg1-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "4.9.5+dfsg1-1"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "4.9.5+dfsg1-1"
        },
        {
            "binary_name":  "wordpress-theme-twentyfifteen",
            "binary_version":  "4.9.5+dfsg1-1"
        },
        {
            "binary_name":  "wordpress-theme-twentyseventeen",
            "binary_version":  "4.9.5+dfsg1-1"
        },
        {
            "binary_name":  "wordpress-theme-twentysixteen",
            "binary_version":  "4.9.5+dfsg1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:20.04:LTS
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.2.2+dfsg1-1
5.2.4+dfsg1-1
5.3.2+dfsg1-1
5.3.2+dfsg1-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "5.3.2+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "5.3.2+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentynineteen",
            "binary_version":  "5.3.2+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentyseventeen",
            "binary_version":  "5.3.2+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentysixteen",
            "binary_version":  "5.3.2+dfsg1-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:22.04:LTS
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.7.1+dfsg1-2ubuntu1
5.8.1+dfsg1-2ubuntu1
5.8.2+dfsg1-1ubuntu1
5.8.3+dfsg1-1ubuntu1
5.8.3+dfsg1-1ubuntu1.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "5.8.3+dfsg1-1ubuntu1.1"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "5.8.3+dfsg1-1ubuntu1.1"
        },
        {
            "binary_name":  "wordpress-theme-twentynineteen",
            "binary_version":  "5.8.3+dfsg1-1ubuntu1.1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwenty",
            "binary_version":  "5.8.3+dfsg1-1ubuntu1.1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyone",
            "binary_version":  "5.8.3+dfsg1-1ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:24.04:LTS
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.2+dfsg1-1ubuntu1
6.4.3+dfsg1-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "6.4.3+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "6.4.3+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfour",
            "binary_version":  "6.4.3+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentythree",
            "binary_version":  "6.4.3+dfsg1-1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentytwo",
            "binary_version":  "6.4.3+dfsg1-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:25.10
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.7.2+dfsg1-1.1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu1"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfive",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfour",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu1"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentythree",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:26.04:LTS
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.7.2+dfsg1-1.1ubuntu1
6.7.2+dfsg1-1.1ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfive",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfour",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentythree",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"
Ubuntu:26.10
wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.7.2+dfsg1-1.1ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "wordpress",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-l10n",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfive",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentyfour",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        },
        {
            "binary_name":  "wordpress-theme-twentytwentythree",
            "binary_version":  "6.7.2+dfsg1-1.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39202.json"