Risk Letters

Exploited vulnerability

CVE-2017-20289

TLP:CLEAR

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

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.

Facts

  • Vendor: Broadstreet
  • Product: Ad Widget
  • EPSS (probability of exploitation within 30 days): 0.9 %
  • First known exploitation: 22 October 2026
  • First seen by Risk Letters: 22 October 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD