Medium severity · published Sep 9, 2021
CVE-2021-39203
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database
6.5
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
5.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39203
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39203
Third Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-qxvw-qxm9-qvg6
Permissions Required
https://hackerone.com/reports/1225282
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