Apache Druid includes the ability to execute user-provided JavaScript code embedded in various types of requests. This functionality is intended for use in high-trust environments, and is disabled by default. However, in Druid 0.20.0 and earlier, it is possible for an authenticated user to send a specially-crafted request that forces Druid to run user-provided JavaScript code for that request, regardless of server configuration. This can be leveraged to execute code on the target machine with the privileges of the Druid server process.

Apache Druid allows users with certain permissions to read data from other database systems using JDBC. This functionality allows trusted users to set up Druid lookups or run ingestion tasks. Druid also allows administrators to configure a list of allowed properties that users are able to provide for their JDBC connections. By default, this allowed properties list restricts users to TLS-related properties only. However, when configuration a MySQL JDBC connection, users can use a particularly-crafted JDBC connection string to provide properties that are not on this allow list. Users without the permission to configure JDBC connections are not able to exploit this vulnerability. CVE-2021-26919 describes a similar vulnerability which was partially addressed in Apache Druid 0.20.2. This issue is fixed in Apache Druid 30.0.1.

Padding Oracle vulnerability in Apache Druid extension, druid-pac4j. This could allow an attacker to manipulate a pac4j session cookie. This issue affects Apache Druid versions 0.18.0 through 30.0.0. Since the druid-pac4j extension is optional and disabled by default, Druid installations not using the druid-pac4j extension are not affected by this vulnerability. While we are not aware of a way to meaningfully exploit this flaw, we nevertheless recommend upgrading to version 30.0.1 or higher which fixes the issue and ensuring you have a strong druid.auth.pac4j.cookiePassphrase as a precaution.

Weak password hashing using MD5 in funzioni.php in HotelDruid before 1.32 allows an attacker to obtain plaintext passwords from hash values.

Cross-site scripting vulnerability in HOTELDRUID 3.0.5 and earlier allows a remote unauthenticated attacker to execute an arbitrary script on the web browser of the user who is logging in to the product.

A cross-site scripting (XSS) vulnerability in /hoteldruid/visualizza_contratto.php of Hoteldruid v3.0.5 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the destinatario_email1 parameter.

A cross-site scripting (XSS) vulnerability in /hoteldruid/clienti.php of Hoteldruid v3.0.5 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the nometipotariffa1 parameter.

Hoteldruid v3.0.5 was discovered to contain multiple SQL injection vulnerabilities at /hoteldruid/clienti.php via the annonascita, annoscaddoc, giornonascita, giornoscaddoc, lingua_cli, mesenascita, and mesescaddoc parameters.

Hoteldruid v3.0.5 was discovered to contain a SQL injection vulnerability via the id_utente_log parameter at /hoteldruid/personalizza.php.

Hoteldruid v3.0.5 was discovered to contain a SQL injection vulnerability via the n_utente_agg parameter at /hoteldruid/interconnessioni.php.