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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (51.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Advantech Webaccess\/scada
- Advantech Webaccess/scada — versions Versions 9.0 and prior
Weakness classification (CWE)
References
- us-cert.cisa.gov/ics/advisories/icsa-21-075-01 (US Government Resource, Third Party Advisory)
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.