Medium severity · published Sep 9, 2021
CVE-2021-39200
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database
5.3
CVSS
2%
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 output data of the function wp_die() can be leaked under certain conditions, which can include data like nonces. It can then be used to perform actions on your behalf. This has been patched in WordPress 5.8.1, along with any older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
5.2 before 5.8.1 · source: NVD
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39200
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39200
Third Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-m9hc-7v5q-x8q5
Permissions Required
https://hackerone.com/reports/1142140
Third Party Advisory
https://www.debian.org/security/2021/dsa-4985
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