CVE-2017-20289

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cxsecurity.com/issue/WLB-2017100084
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/ad-widget-lfi.yaml
https://packetstorm.news/files/id/144553/
https://plugins.trac.wordpress.org/changeset/1628751/ad-widget
https://wordpress.org/plugins/ad-widget/
https://wpscan.com/vulnerability/caca21fe-56bf-4d4c-afc8-4a218e52f0a2
https://www.vulncheck.com/advisories/broadstreet-ad-widget-wordpress-plugin-2.12.0-local-file-inclusion-via-step-parameter

Configurations

No configuration.

History

22 Oct 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-22 11:17

Updated : 2026-10-23 22:16

NVD link : CVE-2017-20289

Mitre link : CVE-2017-20289

CVE.ORG link : CVE-2017-20289

JSON object : View

Products Affected

No product.

CWE

CWE-98

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

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