CVE-2023-33548Public exploitNetwork attack vector

Administrator-browser script execution via unsanitized WPA key

Published May 6, 2024 · Updated Mar 27, 2025

Stored XSS in ASUS RT-AC51U firmware 3.0.0.4.380.8591 and earlier allows remote authenticated users to run script through a WPA key. The administrator web UI stores the WPA Pre-Shared Key without sanitizing it and renders the value after settings are saved, executing injected HTML or script in the browser. Administrator access is required to alter the field, and a payload is limited to 63 characters unless the client-side maximum is removed.

CVSS severity6.8
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in ASUS RT-AC51U firmware 3.0.0.4.380.8591 and earlier allows remote authenticated users to run script through a WPA key. The administrator web UI stores the WPA Pre-Shared Key without sanitizing it and renders the value after settings are saved, executing injected HTML or script in the browser. Administrator access is required to alter the field, and a payload is limited to 63 characters unless the client-side maximum is removed.

The record

CVE
CVE-2023-33548
Published
May 6, 2024
Updated
Mar 27, 2025
Vendor
ASUSTeK Computer Inc.
Product
ASUS RT-AC51U Firmware
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.0.0.4.380.8591

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ASUSTeK Computer Inc. · ASUS RT-AC51U Firmwareversion=0 <=3.0.0.4.380.8591

Published CVSS scores

6.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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