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TI-2017-14768 Aliases CVE-2017-20289GHSA-p32h-85vq-6f9p

Local file inclusion in Broadstreet Ad Widget WordPress plugin

Priority HIGH 69CWE-98Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-98.

Summary

The Broadstreet Ad Widget plugin for WordPress from 2.2.0 before 2.12.0 contains a local file inclusion flaw. Improper control of a filename in a PHP require statement (CWE-98) lets authenticated users run attacker-chosen PHP files. Attackers can pass directory traversal sequences through the step parameter, optionally with a null byte, to include local files and execute PHP code. The Shadowserver Foundation first observed exploitation on 2023-10-19, and a public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00931 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Ad Widget (Broadstreet): 2.12.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BroadstreetAd Widget2.2.0 to before 2.12.02.12.0Patch availableCNA
  • Ad Widget VendorBroadstreet Affected 2.2.0 to before 2.12.0 Fixed in 2.12.0 Patch available CNA

Remediation

Update Broadstreet Ad Widget to version 2.12.0, the fixed version for this plugin.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Ad Widget (Broadstreet) Fixed in 2.12.0

Timeline

  1. 2026-10-22 Threatist record created from CVE-2017-20289
  2. 2026-10-22 Alias added: GHSA-p32h-85vq-6f9p
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-23 CISA SSVC decision points changed
  5. 2026-10-24 Priority changed: LOW → HIGH

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2025-42754 WordPress Broadstreet Ads plugin <= 1.52.1 - Broken Access Control vulnerability CVSS 3.1HIGH 7.6
  • TI-2025-30483 WordPress Broadstreet plugin <= 1.51.2 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2025-23308 WordPress Broadstreet plugin <= 1.52.1 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2026-33027 WordPress Broadstreet Ads plugin <= 1.52.2 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.4
  • TI-2025-23367 WordPress Broadstreet plugin <= 1.52.1 - Cross Site Request Forgery (CSRF) to Settings Change vulnerability CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences