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Advisories

Vikunja veans before 2.7.1 HTTPS to HTTP Downgrade in Server Discovery

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Severity
high
Date
Affecting

  • vikunja >= 0, < 2.7.1

CWE
  • CWE-319 Cleartext Transmission of Sensitive Information
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Description
Vikunja veans before 2.7.1 contains a protocol downgrade vulnerability in serverCandidates that allows on-path attackers to force plain HTTP during veans init and login. Attackers can block HTTPS ports so discovery accepts an unverified HTTP response, capturing passwords, TOTP codes or bot tokens and persisting cleartext API traffic.

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