CVE-2017-20289 json
Broadstreet Ad Widget WordPress Plugin < 2.12.0 Local File Inclusion via step parameter
published 2026-10-22 18 d ago modified 2026-10-23 16 d ago also EUVD-2017-19026
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 17 d ago
Exploit prediction
0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- packetstorm.news https://packetstorm.news/files/id/144553/ referenced PoC, tagged "exploit" by a source, unverified
- cxsecurity.com https://cxsecurity.com/issue/WLB-2017100084 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.7 | 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 |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 7.7 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Broadstreet Ad Widget
Classification
- Weakness
-
- CWE-98 Improper Control of Filename for Include/Require Statement in PHP Program
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/1628751/ad-widget
patch
-
packetstorm.news
/files/id/144553/
exploit
-
cxsecurity.com
/issue/WLB-2017100084
exploit
-
wpscan.com
/vulnerability/caca21fe-56bf-4d4c-afc8-4a218e52f0a2
third-party-advisory
-
github.com
/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/ad-widget-lfi.yaml
technical-description
-
wordpress.org
/plugins/ad-widget/
product
-
vulncheck.com
/advisories/broadstreet-ad-widget-wordpress-plugin-2.12.0-local-file-inclusion-via-step-parameter
third-party-advisory
Sources
- CVE List CVE-2017-20289
- NVD CVE-2017-20289
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.