Medium severity · published Jun 11, 2021
CVE-2021-34540
Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard
6.1
CVSS
0.9%
EPSS
No
On KEV
Description
Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard.
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)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
Webaccess · Advantech
8.4.2; 8.4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34540
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34540
Exploit
https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540
Vendor Advisory
https://www.advantech.com/support
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