The The WP Ultimate Review plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.4.3. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.
The nonce required to pass the only gate is emitted to unauthenticated visitors via the public review form, and submitted shortcode payloads are auto-published without admin approval by default, meaning exploitation requires no account and no privileged interaction.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 6
https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/co…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/co…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/app/co…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-ultimate-review/tags/2.4.3/init.p…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&old=3720426%40wp-ultimat…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/ee3690d9-d1c3-4653-94…
security@wordfence.com