Spoofing attack in WordPress - CVE-2019-17673
Published: October 15, 2019 / Updated: October 30, 2019
Vulnerability identifier: #VU21790
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-17673
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WordPress.ORG
Affected software:
WordPress
WordPress
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a spoofing attack.
The vulnerability exists due to insufficient validation of user-supplied input passed via the Vary: Origin header. A remote attacker can send a specially crafted HTTP GET request to poison the cache of JSON files.
How to mitigate CVE-2019-17673
Install updates from vendor's website.