An incorrect handling of permissions in OTRS External Interface and the ConfigItem List module allows an authenticated customer to query the system for CI information. Please note that CMDB has to be anabled and CustomerGroupSupport has to be used to be affected. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X

otrs

An improper Input Validation vulnerability in OTRS Customer Backend module allows to access customer information which are restricted to other groups. Please note that the feature has to be anabled and CustomerGroupSupport has to be used to be affected. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X

otrs

An improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X * (OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

otrs

An uncontrolled allocation of resources without limits or throttling in the e-mail handling in OTRS allows excessive allocation which may lead to the abortion of the webserver.This issue affects OTRS: * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X Please note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected

otrs

An improper default configuration in OTRS 2026.3.1 causes ticket article forwarding actions to enforce the “Is visible for customer” flag by default and prevent users from disabling it via the UI. This leads to unintended exposure of internal ticket information to the External Frontend This issue affects OTRS 2026.3.1

otrs

A vulnerability in the SQL Box in the admin interface of OTRS leads to an uncontrolled resource consumption leading to a DoS against the webserver. will be killed by the systemThis issue affects OTRS:  * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.3.X

A Cross-Site Scripting (XSS) vulnerability exists in Znuny::ITSM 6.5.x in the customer.pl endpoint via the OTRSCustomerInterface parameter

A vulnerability was detected in LigeroSmart up to 6.1.26. The impacted element is the function AgentDashboard of the file /otrs/index.pl. Performing a manipulation of the argument Subaction results in cross site scripting. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

ligerosmart

A security vulnerability has been detected in LigeroSmart up to 6.1.26. The affected element is an unknown function of the file /otrs/index.pl. Such manipulation of the argument SortBy leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

ligerosmart

A weakness has been identified in LigeroSmart up to 6.1.26. Impacted is an unknown function of the file /otrs/index.pl?Action=AgentTicketSearch. This manipulation of the argument Profile causes cross site scripting. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

ligerosmart

A security vulnerability has been detected in LigeroSmart up to 6.1.26. The affected element is an unknown function of the file /otrs/index.pl. Such manipulation of the argument TicketID leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

ligerosmart

A weakness has been identified in LigeroSmart up to 6.1.26. Impacted is an unknown function of the file /otrs/index.pl?Action=AgentTicketZoom. This manipulation of the argument TicketID causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

ligerosmart

A vulnerability in the External Interface of OTRS allows conclusions to be drawn about the existence of user accounts through different HTTP response codes and messages. This enables an attacker to systematically identify valid email addresses. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * OTRS 2025.X

A vulnerability in the OTRS Admin Interface and Agent Interface (versions before OTRS 8) allow parameter injection due to for an autheniticated agent or admin user. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * OTRS 2025.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

A vulnerability in OTRS Application Server allows session hijacking due to missing attributes for sensitive cookie settings in HTTPS sessions. A request to an OTRS endpoint from a possible malicious web site, would send the authentication cookie, performing an unwanted read operation.   This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * OTRS 2025.x

otrs

A vulnerability in OTRS Application Server and reverse proxy settings allows session hijacking due to missing attributes for sensitive cookie settings in HTTPS sessions. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X

Certain errors of the upstream libraries will insert sensitive information in the OTRS or ((OTRS)) Community Edition log mechanism and mails send to the system administrator. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

An improper privilege management vulnerability in OTRS Generic Interface module allows change of the Ticket status even if the user only has ro permissions. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

A vulnerability exists in OTRS and ((OTRS Community Edition)) that fail to set the HTTP response header X-Content-Type-Options to nosniff. An attacker could exploit this vulnerability by uploading or inserting content that would be treated as a different MIME type than intended. This issue affects: * OTRS 7.0.X * OTRS 8.0.X * OTRS 2023.X * OTRS 2024.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

Passwords of agents and customers are displayed in plain text in the OTRS admin log module if certain configurations regarding the authentication sources match and debugging for the authentication backend has been enabled. This issue affects: * OTRS from 7.0.X through 7.0.50 * OTRS 8.0.X * OTRS 2023.X * OTRS from 2024.X through 2024.5.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

Improper Neutralization of Input done by an attacker with admin privileges ('Cross-site Scripting') in Process Management modules of OTRS and ((OTRS)) Community Edition allows Cross-Site Scripting (XSS) within the Process Management targeting other admins. This issue affects: * OTRS from 7.0.X through 7.0.50 * OTRS 8.0.X * OTRS 2023.X * OTRS from 2024.X through 2024.5.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

Improper Neutralization of Input done by an attacker with admin privileges ('Cross-site Scripting') in  OTRS (System Configuration modules) and ((OTRS)) Community Edition allows Cross-Site Scripting (XSS) within the System Configuration targeting other admins. This issue affects:  * OTRS from 7.0.X through 7.0.50 * OTRS 8.0.X * OTRS 2023.X * OTRS from 2024.X through 2024.5.X * ((OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected