What’s Vulnerable › Vulnerabilities

CVE-2021-21800

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 14.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-16 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross-site scripting vulnerabilities exist in the ssh_form.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). If a user visits a specially crafted URL, it can lead to arbitrary JavaScript code execution in the context of the targeted user’s browser. An attacker can provide a crafted URL to trigger this vulnerability.

Affected products

• Advantech R-SeeNet: 2.4.12

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1271
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1271

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