CVE-2023-34360: ASUS RT-AX88U - Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-31 · updated 2026-06-17
Weakness: CWE-79

Description

A stored cross-site scripting (XSS) issue was discovered within the Custom User Icons functionality of ASUS RT-AX88U running firmware versions 3.0.0.4.388.23110 and prior. After a remote attacker logging in device with regular user privilege, the remote attacker can perform a Stored Cross-site Scripting (XSS) attack by uploading image which containing JavaScript code.

Affected products

ASUS RT-AX88U: through 3.0.0.4.388.23110

References

https://https://www.twcert.org.tw/tw/cp-132-7281-dc87d-1.html
https://https://www.twcert.org.tw/tw/cp-132-7281-dc87d-1.html

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