UBUNTU-CVE-2021-29450

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Source
https://ubuntu.com/security/CVE-2021-29450
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29450.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-29450
Upstream
Published
2021-04-15T22:15:00Z
Modified
2026-10-17T12:55:45Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

Wordpress is an open source CMS. One of the blocks in the WordPress editor can be exploited in a way that exposes password-protected posts and pages. This requires at least contributor privileges. This has been patched in WordPress 5.7.1, along with the older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.

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-2021-29450.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-2021-29450.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-2021-29450.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-2021-29450.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-2021-29450.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-2021-29450.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-2021-29450.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-2021-29450.json"