openwrt luci up to 26.072.65753 wireless.js append SSID cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in openwrt luci up to 26.072.65753. This impacts the function append of the file wireless.js. Performing a manipulation of the argument SSID results in cross site scripting. This vulnerability is reported as CVE-2026-32721. The attack requires a local approach. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in openwrt luci up to 26.072.65753. It has been classified as problematic. This affects the function append of the file wireless.js. The manipulation of the argument SSID with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

LuCI is the OpenWrt Configuration Interface. Versions prior to both 24.10.5 and 25.12.0, contain a stored XSS vulnerability in the wireless scan modal, where SSID values from scan results are rendered as raw HTML without any sanitization. The wireless.js file in the luci-mod-network package passes SSIDs via a template literal to dom.append(), which processes them through innerHTML, allowing an attacker to craft a malicious SSID containing arbitrary HTML/JavaScript. Exploitation requires the user to actively open the wireless scan modal (e.g., to connect to a Wi-Fi access point or survey nearby channels), and only affects OpenWrt versions newer than 23.05/22.03 up to the patched releases (24.10.6 and 25.12.1). The issue has been fixed in version LuCI 26.072.65753~068150b.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-32721 since 03/13/2026. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 26.072.65753~068150b eliminates this vulnerability. Applying the patch 068150ba5f524ef6b03817b258d31ec310053fd6 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• openwrt

Name

• luci

Version

• 22.03
• 23.05
• 24.10.0
• 24.10.1
• 24.10.2
• 24.10.3
• 24.10.4
• 24.10.5
• 24.10.6
• 25.0
• 25.1
• 25.2
• 25.3
• 25.4
• 25.5
• 25.6
• 25.7
• 25.8
• 25.9
• 25.10
• 25.11
• 25.12.0
• 25.12.1
• 26.072.65753

License

• open-source

Website

• Product: https://github.com/openwrt/luci/

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