What’s Vulnerable › Vulnerabilities

CVE-2021-36921

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-12 · updated 2026-06-17
• Weakness: CWE-287

Description

AIMANAGER before B115 on MONITORAPP Application Insight Web Application Firewall (AIWAF) devices with Manager 2.1.0 has Improper Authentication. An attacker can gain administrative access by modifying the response to an authentication check request.

Affected products

• Monitorapp Application Insight Manager: from b107 before b115 — fixed in b115

How to fix

Upgrade to a fixed version: Monitorapp Application Insight Manager b115. Check the vendor advisory for mitigations.

References

• https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0021/FEYE-2021-0021.md
• https://github.com/monitorapp-aicc/report/wiki/CVE-2021-36921
• https://www.monitorapp.com/waf/
• https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0021/FEYE-2021-0021.md
• https://github.com/monitorapp-aicc/report/wiki/CVE-2021-36921
• https://www.monitorapp.com/waf/

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