CVE-2026-32721: LuCI luci-mod-network: Possible XSS attack in WiFi scan on Joining Wireless Client modal
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.
Affected Software
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Event History
Frequently Asked Questions
What is the vulnerability severity of CVE-2026-32721?
CVE-2026-32721 has a medium severity rating due to the potential for stored XSS attacks.
How do I mitigate CVE-2026-32721?
To mitigate CVE-2026-32721, upgrade to versions 24.10.5 or 25.12.0 or later of the OpenWrt LuCI interface.
What are the affected versions for CVE-2026-32721?
CVE-2026-32721 affects OpenWrt LuCI versions prior to 24.10.5 and 25.12.0, including 23.05 and 22.03.
What kind of attack is CVE-2026-32721 associated with?
CVE-2026-32721 is associated with a stored XSS (Cross-Site Scripting) attack that may allow an attacker to execute malicious scripts.
Can CVE-2026-32721 affect my wireless configuration?
Yes, CVE-2026-32721 can potentially affect wireless configurations due to the vulnerability in the WiFi scan modal of the LuCI interface.