CVE-2017-20207

Flickr Gallery <= 1.5.2 - Unauthenticated PHP Object Injection

CVSS 9.8 CRITICALEPSS 0.7%CWE-502

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Dan Coulter · Flickr Gallery

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References

https://plugins.trac.wordpress.org/changeset/1737576/flickr-gallery https://www.wordfence.com/blog/2017/10/3-zero-day-plugin-vulnerabilities-exploited-wild/https://www.wordfence.com/threat-intel/vulnerabilities/id/b52ae51d-7b9a-4047-82bf-723ea87d2375?source=cve