CVE-2023-23313: DrayTek VIGOR1000B Firmware

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Certain Draytek products are vulnerable to Cross Site Scripting (XSS) via the wlogin.cgi script and user_login.cgi script of the router's web application management portal. This affects Vigor3910, Vigor1000B, Vigor2962 v4.3.2.1; Vigor2865 and Vigor2866 v4.4.1.0; Vigor2927 v4.4.2.2; and Vigor2915, Vigor2765, Vigor2766, Vigor2135 v4.4.2.0; Vigor2763 v4.4.2.1; Vigor2862 and Vigor2926 v3.9.9.0; Vigor2925 v3.9.3; Vigor2952 and Vigor3220 v3.9.7.3; Vigor2133 and Vigor2762 v3.9.6.4; and Vigor2832 v3.9.6.2.

Affected products

• DrayTek VIGOR1000B Firmware: before 4.3.2.2 (fixed in 4.3.2.2)
• DrayTek VIGOR130 Firmware: before 3.8.5.1 (fixed in 3.8.5.1)
• DrayTek VIGOR165 Firmware: before 4.2.4.1 (fixed in 4.2.4.1)
• DrayTek VIGOR166 Firmware: before 4.2.4.1 (fixed in 4.2.4.1)
• DrayTek VIGOR2133 Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2133AC Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2133FVAC Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2133N Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2133VAC Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2135 Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2135AC Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2135AX Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2135FVAC Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2135VAC Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2762 Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2762AC Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2762N Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2762VAC Firmware: before 3.9.6.5 (fixed in 3.9.6.5)
• DrayTek VIGOR2763 Firmware: before 4.4.2.2 (fixed in 4.4.2.2)
• DrayTek VIGOR2763AC Firmware: before 4.4.2.2 (fixed in 4.4.2.2)
• DrayTek VIGOR2765 Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2765AC Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2765AX Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2765VA Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• DrayTek VIGOR2766 Firmware: before 4.4.2.1 (fixed in 4.4.2.1)
• and 66 more

Published 2023-03-03. Last modified 2026-06-17.