Vulnerability in Broadstreet Ad Widget
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- wpscan.com/vulnerability/caca21fe-56bf-4d4c-afc8-4a218e52f0a2 (third-party-advisory)
- packetstorm.news/files/id/144553/ (exploit)
- cxsecurity.com/issue/WLB-2017100084 (exploit)
- plugins.trac.wordpress.org/changeset/1628751/ad-widget (patch)
- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wor… (technical-description)
- wordpress.org/plugins/ad-widget/ (product)
- www.vulncheck.com/advisories/broadstreet-ad-widget-wordpress-plugin-2.12.0-loca… (third-party-advisory)
Frequently asked questions
- What is CVE-2017-20289?
- CVE-2017-20289 is a high-severity vulnerability in Broadstreet Ad Widget, classified under PHP Remote File Inclusion. CVSS score: 7.5/10. Published 2026-10-22.
- How severe is CVE-2017-20289?
- High severity. CVSS v3 base score is 7.5 out of 10.