Improper access control in WordPress - CVE-2020-11028

Vulnerability identifier: #VU27439

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-11028

CWE-ID: CWE-284

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions to certain private posts. A remote non-authenticated attacker can bypass implemented security restrictions and read private posts.

WordPress
wordpress (Debian package)
wordpress
Fedora

Install updates from vendor's website.

WordPress - addressed in versions 3.7.33, 3.8.33, 3.9.31, 4.0.30, 4.1.30, 4.2.27, 4.3.23, 4.4.22, 4.5.21, 4.6.18, 4.7.17, 4.8.13, 4.9.14, 5.0.9, 5.1.5, 5.2.6, 5.3.3, 5.4.1
wordpress (Debian package) - addressed in versions 4.7.5+dfsg-2+deb9u6, 5.0.4+dfsg1-1+deb10u2, 5.4.1+dfsg1-1
wordpress - addressed in versions 5.1.5-1.el6, 5.1.5-1.el7

• https://wordpress.org/news/2020/04/wordpress-5-4-1/
• https://wpvulndb.com/vulnerabilities/10202/
• https://core.trac.wordpress.org/changeset/47635/
• https://www.wordfence.com/blog/2020/04/unpacking-the-7-vulnerabilities-fixed-in-todays-wordpress-5-4-1-security-update/
• https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-xhx9-759f-6p2w

• Multiple vulnerabilities in WordPress
• Debian update for wordpress
• Fedora EPEL 6 update for wordpress
• Fedora EPEL 7 update for wordpress