CVE-2024-3850
Published: 10 June 2024
Summary
CVE-2024-3850 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Uniview Nvr301-04S2-P4 Firmware. Its CVSS base score is 4.8 (Medium).
Operationally, ranked in the top 6.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Uniview NVR301-04S2-P4 network video recorders are affected by a reflected cross-site scripting vulnerability tracked as CVE-2024-3850. The flaw, assigned CWE-79, allows an attacker to craft a URL that executes arbitrary JavaScript in a victim's browser when the link is followed. The issue carries a CVSS 4.0 score of 4.8 and is constrained by the requirement for prior authentication.
An authenticated user must be induced to click the malicious URL for the reflected XSS to trigger. Successful exploitation results in JavaScript execution within the user's session, yet the vendor assessment states that no further privileges or actions become available beyond what the authenticated user already possesses.
CISA has published ICSA-24-156-01 detailing the issue, and detection templates have been shared publicly. The EPSS score has remained flat at 0.1190 with no observed increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-32418
Vulnerability details
Uniview NVR301-04S2-P4 is vulnerable to reflected cross-site scripting attack (XSS). An attacker could send a user a URL that if clicked on could execute malicious JavaScript in their browser. This vulnerability also requires authentication before it can be exploited, so…
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the scope and severity is limited. Also, even if JavaScript is executed, no additional benefits are obtained.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.