CVE-2023-31853

MEDIUM

Cudy LT400 1.13.4 - Cross-Site Scripting via Bandwidth Icon Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-31853. PoCs published by CalfCrusher.

AI-analyzed exploit summary This repository contains a proof-of-concept for CVE-2023-31853, a reflected XSS vulnerability in the web-based management interface of Cudy LT400. The exploit leverages the `icon` parameter in the `/cgi-bin/luci/admin/network/bandwidth` endpoint to execute arbitrary JavaScript, potentially leading to session token theft.

Description

Cudy LT400 1.13.4 is vulnerable Cross Site Scripting (XSS) in /cgi-bin/luci/admin/network/bandwidth via the icon parameter.

Exploits (1)

nomisec WORKING POC
by CalfCrusher · poc
https://github.com/CalfCrusher/CVE-2023-31853

This repository contains a proof-of-concept for CVE-2023-31853, a reflected XSS vulnerability in the web-based management interface of Cudy LT400. The exploit leverages the `icon` parameter in the `/cgi-bin/luci/admin/network/bandwidth` endpoint to execute arbitrary JavaScript, potentially leading to session token theft.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Cudy LT400 web-based management interface
Auth required
Prerequisites: Access to the vulnerable endpoint · Valid session cookie
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory
https://github.com/CalfCrusher/CVE-2023-31853

Scores

CVSS v3 6.1
EPSS 0.0043
EPSS Percentile 34.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
cudy/lt400_firmware 1.13.4
Published Jul 17, 2023
Tracked Since Feb 18, 2026