CVE-2021-34540 — MEDIUM (6.1)

Vulnerability Description

Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard.

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	Webaccess	8.4.2

Related Weaknesses (CWE)

CWE-79

References

https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540ExploitThird Party Advisory
https://www.advantech.com/supportVendor Advisory
https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540ExploitThird Party Advisory
https://www.advantech.com/supportVendor Advisory

FAQ

What is CVE-2021-34540?

CVE-2021-34540 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard.

How severe is CVE-2021-34540?

CVE-2021-34540 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-2021-34540?

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