| Title | Wavlink WL-NU516U1-A M16U1_V240425 Command Injection |
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| Description | Wavlink WL-NU516U1 firmware M16U1_V240425 contains a command injection vulnerability in /cgi-bin/wireless.cgi. When the page parameter is set to multi_ssid, the function sub_401D68 reads the SSID5G2 POST parameter via the URL decode function sub_405EA8. The decoded value is appended with "_Touch" and concatenated into shell commands using sprintf("set_bss.sh set 2 \"%s_Touch\" OPEN NONE Admin12345", ssid) and executed via system(). The input filter sub_4074A0 only blocks backtick and pipe characters, but the $(cmd) command substitution syntax is not filtered, allowing arbitrary command execution. |
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| Source | ⚠️ https://github.com/Svigo-o/Wavlink_vul/tree/main/wavlink-wl-nu516u1-wireless-multissid-ssid5g2-command-injection |
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| User | JuneGu (UID 98407) |
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| Submission | 05/20/2026 11:17 (1 month ago) |
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| Moderation | 06/28/2026 12:01 (1 month later) |
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| Status | Duplicate |
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| VulDB entry | 374546 [Wavlink WL-NU516U1-A M16U1_V240425 POST Parameter /cgi-bin/wireless.cgi sub_401D68 SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 command injection] |
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| Points | 0 |
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