CVE-2021-43702 json
ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS).
published 2022-07-05 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-30609
- cvss
- 9.0
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- kroll.com https://www.kroll.com/en/insights/publications/cyber/cve-2021-43702-from-discovery-to-patch referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
kroll.com
/en/insights/publications/cyber/cve-2021-43702-from-discovery-to-patch
exploit, third-party-advisory
-
asus.com
/uk/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AC88U/
product, vendor-advisory
Sources
- CVE List CVE-2021-43702
- NVD CVE-2021-43702
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