Medium severity · published Dec 27, 2019
CVE-2019-20043
In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to…
4.3
CVSS
2.5%
EPSS
No
On KEV
Description
In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to mark posts as sticky or unsticky via the REST API. For example, the contributor role does not have such rights, but this allowed them to bypass that. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
3.7 before 5.3.1 · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20043
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20043
Patch
https://core.trac.wordpress.org/changeset/46893/trunk
Third Party Advisory
https://github.com/WordPress/wordpress-develop/commit/1d1d5be7aa94608c04516cac4238e8c22b93c1d9
Third Party Advisory
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-g7rg-hchx-c2gw
Mailing List
https://seclists.org/bugtraq/2020/Jan/8
Release Notes
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
Release Notes
https://wpvulndb.com/vulnerabilities/9973
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