Improper input validation in WordPress - CVE-2019-17675
Published: October 15, 2019 / Updated: October 30, 2019
Vulnerability identifier: #VU21791
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-17675
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input passed via the referred header in the admin panel. A remote attacker can trick a victim to visit a specially crafted webpage and bypass implemented security restrictions that rely on HTTP referrer header.
Affected software
WordPress
wordpress (Debian package)
wordpress (Debian package)
How to mitigate CVE-2019-17675
Install updates from vendor's website.
WordPress - addressed in versions 3.7.31, 3.8.31, 3.9.29, 4.0.28, 4.1.28, 4.2.25, 4.3.21, 4.4.20, 4.5.19, 4.6.16, 4.7.15, 4.8.11, 4.9.12, 5.0.7, 5.1.3, 5.2.4
wordpress (Debian package) - addressed in versions 4.7.5+dfsg-2+deb9u6, 5.0.4+dfsg1-1+deb10u1, 5.0.4+dfsg1-1+deb10u2, 5.4.1+dfsg1-1
wordpress (Debian package) - addressed in versions 4.7.5+dfsg-2+deb9u6, 5.0.4+dfsg1-1+deb10u1, 5.0.4+dfsg1-1+deb10u2, 5.4.1+dfsg1-1