CVE-2017-20206 describes a critical PHP Object Injection vulnerability in the WordPress Appointments plugin, affecting versions up to and including 2.2.1. This flaw allows unauthenticated attackers to inject PHP objects through the wpmudev_appointments cookie, leading to arbitrary code execution. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with low complexity and no user interaction, potentially resulting in full compromise of confidentiality, integrity, and availability. Attackers were actively exploiting this vulnerability, specifically leveraging the WP_Theme() class to create backdoors, and it has garnered significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.2.1CPE matchmatch criteria | cpe:2.3:a:wpmudev:appointments:*:*:*:*:*:wordpress:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.