PatchTheCVECVE-2017-20192: The Formidable Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple par
CVE-2017-20192 is a high-severity flaw (CVSS 8.3) affecting formidable form builder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.3 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 35%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2024-10-16 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Nuclei scan template: Formidable Forms < 2.05.02 - Cross-Site Scripting
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-20192?
formidable form builder: upgrade to 2.05.03. Exact commands for each OS are on this page.
Is CVE-2017-20192 being exploited?
CVE-2017-20192 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-20192 affect?
CVE-2017-20192 affects formidable form builder. Severity is high (CVSS 8.3). 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 outp
How urgent is CVE-2017-20192?
Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
Software pages
Related CVEs
- CVE-2017-20194 MEDIUM 5.3 UPGRADE The Formidable Form Builder plugin for WordPress is vulnerable to Sensitive Data Exposure in versions up to, a