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Advisories

SiYuan 3.6.0 before 3.8.7 Cleartext Transmission via Unenforced networkServeTLS Setting

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Severity
high
Date
Affecting

  • siyuan >= 3.6.0, < 3.8.7

CWE
  • CWE-319 Cleartext Transmission of Sensitive Information
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
lwierzbicki
Description
SiYuan 3.6.0 before 3.8.7 accepts and persists the networkServeTLS setting but never enforces it, so the kernel port keeps serving full API access over plain HTTP alongside HTTPS. Network-adjacent attackers can sniff the cleartext login flow and session cookie, which lacks the Secure attribute while responses omit HSTS, to hijack kernel API sessions.

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