CVE-2021-34540 : Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bw

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

Published 2021-06-11 12:15:12

Updated 2021-06-21 17:37:43

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-34540

Advantech » Webaccess » Version: 8.4.2
cpe:2.3:a:advantech:webaccess:8.4.2:*:*:*:*:*:*:*
Matching versions
Advantech » Webaccess » Version: 8.4.4
cpe:2.3:a:advantech:webaccess:8.4.4:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.32%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 71 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
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
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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)

https://www.advantech.com/support

Advantech - industrial computer , embedded computer, industrial automation, industrial motherboard, network security appliance, digital video surveillance, panel PC, industrial IO.
Vendor Advisory
https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540

CveProject/CVE-2021-34540 at main · ethancsyang/CveProject · GitHub
Exploit;Third Party Advisory

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