Vulnerability Intelligence Report
CVE-2021-41823
The Web Application Firewall (WAF) in Kemp LoadMaster 7.2.54.1 allows certain uses of onmouseover to bypass an XSS protection mechanism.
No Active Exploit Signals
CVSS Base Score
6.1
MEDIUM
Exploitability:2.9
Impact Score:2.8
EPSS Probability:0.49%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| kemptechnologies | web_application_firewall | 7.2.54.1 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.493%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-09-29T00:00:00 |
| Published | 2023-01-01T00:00:00 |
| Last Updated | 2025-04-11T14:44:50 |
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