| Title | Wavlink WL-WN530BE1-A M30BE1_V251117 Command Injection |
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| Description | CWE-78
Finding: wavlink-uploadvpn-du-popen-http-20260729
Summary: On July 29, 2026, a fresh multipart POST to /cgi-bin/uploadVpn.cgi?type=wireguard used group='grp2;id>/tmp/cmdproof_0756' and returned HTTP 500, but independent read-back of the live recovery-rootfs file artifacts/rootfs/tmp/cmdproof_0756 immediately after that same request showed uid=0(root) gid=0(root) groups=0(root). This independently confirms root command execution through the du -sh %s popen sink; the HTTP body was not used as the state-change proof. Required screenshots were captured under findings/wavlink-uploadvpn-du-popen-http-20260729/screenshots/, and report.md was written under findings/wavlink-uploadvpn-du-popen-http-20260729/report.md.
Reproduction: see report.md / poc / dynamic_verification.txt |
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| Source | ⚠️ https://gist.github.com/Rauzk/0a61823f0033441142dc1c3f4a776e7c |
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| User | Tarbely (UID 99399) |
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| Submission | 07/30/2026 01:19 (3 months ago) |
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| Moderation | 10/12/2026 10:33 (2 months later) |
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| Status | Accepted |
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| VulDB entry | 416859 [Wavlink WL-WN530BE1-A 251117 /cgi-bin/uploadVpn.cgi popen type os command injection] |
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| Points | 20 |
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