An issue was discovered in Roundcube Webmail before 1.4.4. A CSRF attack can cause an authenticated user to be logged out because POST was not considered.
{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm2",
            "binary_name": "roundcube"
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            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm2",
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            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm2",
            "binary_name": "roundcube-mysql"
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            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm2",
            "binary_name": "roundcube-pgsql"
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            "binary_name": "roundcube-plugins"
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            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm2",
            "binary_name": "roundcube-sqlite3"
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}
          {
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm2",
            "binary_name": "roundcube"
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            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm2",
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            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm2",
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            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm2",
            "binary_name": "roundcube-sqlite3"
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}
          {
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm1",
            "binary_name": "roundcube"
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            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm1",
            "binary_name": "roundcube-mysql"
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            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm1",
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            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm1",
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            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm1",
            "binary_name": "roundcube-sqlite3"
        }
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}