CVE-2017-20289 (GCVE-0-2017-20289)

Vulnerability from cvelistv5 – Published: 2026-10-22 10:57 – Updated: 2026-10-22 10:57 X_Known Exploited Vulnerability
VLAI Previdian
Title
Broadstreet Ad Widget WordPress Plugin < 2.12.0 Local File Inclusion via step parameter
Summary
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.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-98 - Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6762 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Broadstreet Ad Widget Affected: 2.2.0 , < 2.12.0 (custom)
guessed Create a notification for this product.
Date Public
2017-04-04 00:00
Credits
ethicalhack3r The Shadowserver Foundation
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3177f4db-f4d5-4bae-8290-4220a10b401b

Vulnerability ID: CVE-2017-20289

Status: Confirmed

Status Updated: 2026-10-22 11:10 UTC

Exploited: Yes

Timestamps
First Seen: 2026-10-22
Asserted: 2026-10-22
Scope
Notes: Broadstreet Ad Widget WordPress Plugin < 2.12.0 Local File Inclusion via step parameter | Affected: Broadstreet / Ad Widget | CVSS: 7.7 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Broadstreet Ad Widget WordPress Plugin < 2.12.0 Local File Inclusion via step parameter
Cve Id CVE-2017-20289
Vendor Broadstreet
Ghsa Id None
Product Ad Widget
Added Date 2026-10-22T11:10:50.403Z
Cvss Score 7.7
Epss Score None
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile None
Used In Malware unknown
Vulnerability Id CVE-2017-20289
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-10-23 12:00 UTC | Updated: 2026-10-23 12:00 UTC
Show details on NVD website
To clipboard 

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}



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