What is CVE-2021-27436?

CVE-2021-27436 is a medium-severity vulnerability in Advantech Webaccess\/scada, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-03-18.

How severe is CVE-2021-27436?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Advantech Webaccess\/scada

CVE-2021-27436

WebAccess/SCADA Versions 9.0 and prior is vulnerable to cross-site scripting, which may allow an attacker to send malicious JavaScript code to an unsuspecting user, which could result in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage and performing unintended browser actions.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (49.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Advantech Webaccess\/scada
N/a Advantech Webaccess/scada — versions Versions 9.0 and prior

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27436?: CVE-2021-27436 is a medium-severity vulnerability in Advantech Webaccess\/scada, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-03-18.
How severe is CVE-2021-27436?: Medium severity. CVSS v3 base score is 6.1 out of 10.