The WP Yelp Review Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Yelp Review Text (imported via wpyelp_download_source) in all versions up to, and including, 9.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The malicious payload originates from an anonymous Yelp reviewer on a public platform and requires no WordPress account; it is introduced into the database during the site administrator's ordinary use of the plugin's Download Reviews feature, making the effective attacker unauthenticated.
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)
Vulnerable Products
jgwhite33:wp yelp review slider
References 8
https://plugins.trac.wordpress.org/browser/wp-yelp-review-slider/tags/9.1/admin…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-yelp-review-slider/tags/9.1/admin…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-yelp-review-slider/tags/9.1/admin…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-yelp-review-slider/tags/9.1/admin…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-yelp-review-slider/tags/9.1/publi…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-yelp-review-slider/tags/9.1/publi…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&old=3704718%40wp-yelp-re…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/df6cbc36-d136-49c1-81…
security@wordfence.com