CVE-2026-32721
Stored XSS in LuCI Wireless Scan Modal Allows Code Injection
Publication date: 2026-03-19
Last updated on: 2026-04-14
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| openwrt | openwrt | to 24.10.6 (exc) |
| openwrt | openwrt | From 25.12.0 (inc) to 25.12.1 (exc) |
| openwrt | luci | to 26.072.65753-068150b (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a stored Cross-Site Scripting (XSS) issue in the LuCI OpenWrt Configuration Interface. Specifically, in versions prior to 24.10.5 and 25.12.0, the wireless scan modal renders SSID values from scan results as raw HTML without sanitization. The wireless.js file passes SSIDs via a template literal to dom.append(), which uses innerHTML, allowing attackers to craft malicious SSIDs containing arbitrary HTML or JavaScript code. Exploitation requires the user to open the wireless scan modal, such as when connecting to Wi-Fi or scanning channels.
How can this vulnerability impact me? :
This vulnerability can lead to serious security impacts including the execution of arbitrary code in the context of the LuCI interface. Because the vulnerability allows injection of malicious HTML or JavaScript, it can result in compromise of confidentiality, integrity, and availability of the system. The CVSS score of 8.6 indicates high severity, with potential impacts such as data theft, unauthorized actions, or denial of service.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade your LuCI installation to a patched version. The vulnerability is fixed in LuCI version 26.072.65753~068150b and in OpenWrt releases 24.10.6 and 25.12.1 or later.
Until you can upgrade, avoid opening the wireless scan modal in LuCI, as exploitation requires active user interaction with this feature.