WordPress up to 5.5.1 Installation functions.php is_blog_installed access control

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in WordPress up to 5.5.1. Impacted is the function is_blog_installed of the file wp-includes/functions.php of the component Installation Handler. This manipulation causes access control. This vulnerability is handled as CVE-2020-28037. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in WordPress up to 5.5.1 (Content Management System) and classified as critical. Affected by this vulnerability is the function is_blog_installed of the file wp-includes/functions.php of the component Installation Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 11/03/2020. It is possible to read the advisory at wpscan.com. This vulnerability is known as CVE-2020-28037. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

By approaching the search of inurl:wp-includes/functions.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.5.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WordPress 5.5.2
Patch: github.com

Timelineinfo

10/31/2020 🔍
11/03/2020 +3 days 🔍
11/03/2020 +0 days 🔍
12/01/2020 +28 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: wpscan.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-28037 (🔍)
GCVE (CVE): GCVE-0-2020-28037
GCVE (VulDB): GCVE-100-164191

Entryinfo

Created: 11/03/2020 08:46
Updated: 12/01/2020 11:27
Changes: 11/03/2020 08:46 (42), 12/01/2020 11:22 (2), 12/01/2020 11:27 (18)
Complete: 🔍
Cache ID: 216::103

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