CVE-2018-17021

Name: CVE-2018-17021
Creator: NVD / NIST
Published: 2018-09-13T19:29:00.777+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.09%

Last modified Jun 17, 2026

CVE-2018-17021 is a vulnerability of currently unknown severity. Cross-site scripting (XSS) vulnerability on ASUS GT-AC5300 devices with firmware through 3.0.0.4.384_32738 allows remote attackers to inject arbitrary web script or HTML via the appGet.cgi hook parameter.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability on ASUS GT-AC5300 devices with firmware through 3.0.0.4.384_32738 allows remote attackers to inject arbitrary web script or HTML via the appGet.cgi hook parameter.

Metrics

EPSS Probability

1.09%

61.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Asus	Gt-Ac5300 Firmware	<= 3.0.0.4.384_32738

References

https://github.com/PAGalaxyLab/VulInfo/blob/master/ASUS/ac5300_xss/ASUS%20GT-AC5300%20XSS.MDExploit, Third Party Advisory
https://github.com/PAGalaxyLab/VulInfo/blob/master/ASUS/ac5300_xss/ASUS%20GT-AC5300%20XSS.MDExploit, Third Party Advisory

Timeline

Published: Sep 13, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17021?

How severe is CVE-2018-17021?

Severity scoring for CVE-2018-17021 is pending analysis. The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17021?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-17021?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST