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Vulnerability record · CVE-2021-46109 · published 3 January 2022

CVE-2021-46109: Asus rt-ac52u b1 firmware cross-site scripting vulnerability

Asus · Rt Ac52u B1 Firmware

Invalid input sanitizing leads to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931 can lead to a user session hijack.

6.1 CVSS 3.1 Medium EPSS 0.70% · top 48.7% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Invalid input sanitizing leads to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931 can lead to a user session hijack.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://drive.google.com/drive/folders/1GAOuZwPB-upkpjPgjB8qLIKl9Mh3IVfl?usp=sharing ExploitThird Party Advisory
https://drive.google.com/drive/folders/1GAOuZwPB-upkpjPgjB8qLIKl9Mh3IVfl?usp=sharing ExploitThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-46109), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.