CVE-2021-21800 — MEDIUM (6.1)

Vulnerability Description

Cross-site scripting vulnerabilities exist in the ssh_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 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Advantech	R-Seenet	2.4.12

Related Weaknesses (CWE)

CWE-79

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1271ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1271ExploitThird Party Advisory

FAQ

What is CVE-2021-21800?

CVE-2021-21800 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Cross-site scripting vulnerabilities exist in the ssh_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 Java...

How severe is CVE-2021-21800?

CVE-2021-21800 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21800?

Check the references section above for vendor advisories and patch information. Affected products include: Advantech R-Seenet.