Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login. This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication. Bitbucket OAuth Plugin 0.18 only redirects to relative (Jenkins) URLs.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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