Cross-site scripting in OpenWrt - CVE-2026-32721
Published: April 28, 2026
Vulnerability identifier: #VU128319
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-32721
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: openwrt.org
Affected software:
OpenWrt
OpenWrt
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary script in the user's browser.
The vulnerability exists due to cross-site scripting in the wireless scan results rendering function in wireless.js when rendering SSID values from scan results in the joining wireless client scan modal. A remote attacker can broadcast a specially crafted SSID to execute arbitrary script in the user's browser.
User interaction is required to open the scan modal.
How to mitigate CVE-2026-32721
Install security update from vendor's website.