CVE-2021-39203 : WordPress is a free and open-source content management system written in PHP and

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.

Published 2021-09-09 22:15:10

Updated 2022-08-05 11:00:34

Source GitHub, Inc.

View at NVD, CVE.org

Vulnerability category: Information leak

Products affected by CVE-2021-39203

Wordpress » Wordpress » Version: 5.8 Update Beta1
cpe:2.3:a:wordpress:wordpress:5.8:beta1:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2021-39203

Top countries where our scanners detected CVE-2021-39203

Top open port discovered on systems with this issue 80

IPs affected by CVE-2021-39203 106

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2021-39203!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-39203

EPSS FAQ

0.72%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 71 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-39203

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.0	MEDIUM	AV:N/AC:M/Au:S/C:P/I:P/A:P	6.8	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
6.8	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N	1.6	5.2	GitHub, Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None

CWE ids for CVE-2021-39203

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Assigned by: security-advisories@github.com (Secondary)

References for CVE-2021-39203

https://hackerone.com/reports/1225282

HackerOne
Permissions Required
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-qxvw-qxm9-qvg6

WordPress 5.8 beta: Private data disclosure/privilege escalation through the block editor · Advisory · WordPress/wordpress-develop · GitHub
Third Party Advisory