Cyber Resilience

CVE-2022-21238

MediumPublic PoC

Published: 12 May 2022

Published
12 May 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0123 79.6th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-21238 is a medium-severity Basic XSS (CWE-80) vulnerability in Inhandnetworks Inrouter302 Firmware. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 20.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A cross-site scripting (xss) vulnerability exists in the info.jsp functionality of InHand Networks InRouter302 V3.5.4. A specially-crafted HTTP request can lead to arbitrary Javascript execution. An attacker can send an HTTP request to trigger this vulnerability.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

inhandnetworks
inrouter302 firmware
≤ 3.5.37

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.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References