Broadstreet Ad Widget plugin for WordPress 2.2.0 before 2.12.0 contains a local file inclusion vulnerability that allows authenticated users to execute attacker-chosen PHP files by passing unsanitized input to require in views/modal/index.php. Attackers can supply directory traversal sequences in the 'step' parameter, optionally with a null byte, to include local files and execute PHP code. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-19.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://cxsecurity.com/issue/WLB-2017100084
disclosure@vulncheck.com
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabili…
disclosure@vulncheck.com
https://packetstorm.news/files/id/144553/
disclosure@vulncheck.com
https://plugins.trac.wordpress.org/changeset/1628751/ad-widget
disclosure@vulncheck.com
https://wordpress.org/plugins/ad-widget/
disclosure@vulncheck.com
https://wpscan.com/vulnerability/caca21fe-56bf-4d4c-afc8-4a218e52f0a2
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/broadstreet-ad-widget-wordpress-plugin-2.1…
disclosure@vulncheck.com