Medium severity · published Jul 16, 2021
CVE-2021-21799
Cross-site scripting vulnerabilities exist in the telnet_form.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020)
6.1
CVSS
12.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)12.3% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RS
R-seenet · Advantech
2.4.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21799
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21799
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1270
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