XSS in Strategy11 Formidable Form Builder
CVE-2017-20192
The Formidable Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters submitted during form entries like 'after_html' in versions before 2.05.03 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute in a victim's browser.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.011 (63.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/900fcaab-2424-4ae8-af18-95659… (Third Party Advisory)
- klikki.fi/adv/formidable.html (Exploit, Third Party Advisory)
- wordpress.org/plugins/formidable/ (Product)
Frequently asked questions
- What is CVE-2017-20192?
- CVE-2017-20192 is a high-severity vulnerability in Strategy11 Formidable Form Builder, classified under Cross-site Scripting. CVSS score: 8.3/10. Published 2024-10-16.
- How severe is CVE-2017-20192?
- High severity. CVSS v3 base score is 8.3 out of 10.
- Is CVE-2017-20192 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.