Medium severity · published Mar 18, 2021
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…
6.1
CVSS
0.7%
EPSS
No
On KEV
Description
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.
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)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
Webaccess/scada · Advantech
through 9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27436
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27436
Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-075-01
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