XSS in ASUS 4g-Ac53u
CVE-2021-43702
ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS). The ASUS router admin panel does not sanitize the WiFI logs correctly, if an attacker was able to change the SSID of the router with a custom payload, they could achieve stored XSS on the device.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 61.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.000
Affected products
- ASUS 4g-Ac53u
- ASUS 4g-Ac53u Firmware — versions 3.0.0.4.386.46061
- ASUS 4g-Ac68u
- ASUS 4g-Ac68u Firmware — versions 3.0.0.4.386.46061
- ASUS Rog Rapture Gt-Ac2900
- ASUS Rog Rapture Gt-Ac2900 Firmware — versions 3.0.0.4.386.46061
- ASUS Rog Rapture Gt-Ac5300
- ASUS Rog Rapture Gt-Ac5300 Firmware — versions 3.0.0.4.386.46061
- ASUS Rog Rapture Gt-Ax11000
- ASUS Rog Rapture Gt-Ax11000 Firmware — versions 3.0.0.4.386.46061
Weakness classification (CWE)
References
- www.asus.com/uk/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AC88U/ (Product, Vendor Advisory)
- www.kroll.com/en/insights/publications/cyber/cve-2021-43702-from-discovery-to-p… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-43702?
- CVE-2021-43702 is a critical-severity vulnerability in ASUS 4g-Ac53u, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2022-07-05.
- How severe is CVE-2021-43702?
- Critical severity. CVSS v3 base score is 9.0 out of 10.