UBUNTU-CVE-2023-5561

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Source
https://ubuntu.com/security/CVE-2023-5561
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5561.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-5561
Upstream
Published
2023-10-16T20:15:00Z
Modified
2025-10-24T05:01:36Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attackers to discern the email addresses of users who have published public posts on an affected website via an Oracle style attack

References

Affected packages

Ubuntu:16.04:LTS / wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress@4.4.2+dfsg-1ubuntu1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "4.4.2+dfsg-1ubuntu1",
            "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"
        }
    ]
}

Ubuntu:18.04:LTS / wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress@4.9.5+dfsg1-1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "4.9.5+dfsg1-1",
            "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"
        }
    ]
}

Ubuntu:20.04:LTS / wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress@5.3.2+dfsg1-1ubuntu1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "5.3.2+dfsg1-1ubuntu1",
            "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"
        }
    ]
}

Ubuntu:22.04:LTS / wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress@5.8.3+dfsg1-1ubuntu1.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "5.8.3+dfsg1-1ubuntu1.1",
            "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"
        }
    ]
}

Ubuntu:24.04:LTS / wordpress

Package

Name
wordpress
Purl
pkg:deb/ubuntu/wordpress@6.4.3+dfsg1-1ubuntu1?arch=source&distro=noble

Affected ranges

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

Affected versions

6.*

6.2+dfsg1-1ubuntu1
6.4.3+dfsg1-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "6.4.3+dfsg1-1ubuntu1",
            "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"
        }
    ]
}