What’s Vulnerable › Vulnerabilities

CVE-2021-33021: xArrow SCADA Cross-site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-16 · updated 2026-06-17
• Weakness: CWE-79

Description

xArrow SCADA versions 7.2 and prior is vulnerable to cross-site scripting due to parameter ‘edate’ of the resource xhisalarm.htm, which may allow an unauthorized attacker to execute arbitrary code.

Affected products

• xArrow SCADA: through 7.2

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-21-229-03
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-229-03

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