CVE-2020-26733

MEDIUM

SKYWORTH GN542VF 2.0.0.16 - Authenticated Stored Cross-Site Scripting via DDNS Configuration Section

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-26733. PoCs published by swzhouu.

AI-analyzed exploit summary This repository contains a writeup for CVE-2020-26733, an XSS vulnerability in SKYWORTH GN542VF routers. The vulnerability allows authenticated attackers to inject malicious scripts via the DDNS Configuration Section.

Description

Cross Site Scripting (XSS) in Configuration page in SKYWORTH GN542VF Hardware Version 2.0 and Software Version 2.0.0.16 allows authenticated attacker to inject their own script into the page via DDNS Configuration Section.

Exploits (1)

nomisec WRITEUP 1 stars
by swzhouu · poc
https://github.com/swzhouu/CVE-2020-26733

This repository contains a writeup for CVE-2020-26733, an XSS vulnerability in SKYWORTH GN542VF routers. The vulnerability allows authenticated attackers to inject malicious scripts via the DDNS Configuration Section.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: SKYWORTH GN542VF Hardware Version 2.0 and Software Version 2.0.0.16
Auth required
Prerequisites: Authenticated access to the router's configuration page
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/swzhouu/CVE-2020-26733

Scores

CVSS v3 5.4
EPSS 0.0068
EPSS Percentile 47.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
skyworth/gn542vf_firmware 2.0.0.16
Published Jan 14, 2021
Tracked Since Feb 18, 2026