CVE-2017-20207 — Flickr Gallery <= 1.5.2 - Unauthenticated PHP Object Injection
The Flickr Gallery plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.5.2 via deserialization of untrusted input from the `pager ` pa…
Published: 2025-10-18 · CVSS: 9.8 · CVSS 3.1
The Flickr Gallery plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.5.2 via deserialization of untrusted input from the `pager ` parameter. This allows unauthenticated attackers to inject a PHP Object. Attackers were actively exploiting this vulnerability with the WP_Theme() class to create backdoors.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7