Vulnerability Details : CVE-2021-21799
Potential exploit
Cross-site scripting vulnerabilities exist in the telnet_form.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). If a user visits a specially crafted URL, it can lead to arbitrary JavaScript code execution in the context of the targeted user’s browser. An attacker can provide a crafted URL to trigger this vulnerability.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-21799
- cpe:2.3:a:advantech:r-seenet:2.4.12:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21799
75.98%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21799
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
9.6
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
2.8
|
6.0
|
Talos | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-21799
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- nvd@nist.gov (Primary)
- talos-cna@cisco.com (Secondary)
References for CVE-2021-21799
-
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1270
TALOS-2021-1270 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
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