When OTRS uses multiple backends for user authentication (with LDAP), agents are able to login even if the account is set to invalid. This issue affects OTRS; 8.0.9 and prior versions.
Cross-site scripting (XSS) vulnerability in Open Ticket Request System (OTRS) Help Desk 2.4.x before 2.4.15, 3.0.x before 3.0.17, and 3.1.x before 3.1.11 allows remote attackers to inject arbitrary web script or HTML via an e-mail message body with whitespace before a javascript: URL in the SRC attribute of an element, as demonstrated by an IFRAME element.
Cross-site scripting (XSS) vulnerability in Open Ticket Request System (OTRS) Help Desk 2.4.x before 2.4.14, 3.0.x before 3.0.16, and 3.1.x before 3.1.10, when Firefox or Opera is used, allows remote attackers to inject arbitrary web script or HTML via an e-mail message body with nested HTML tags.
Multiple cross-site scripting (XSS) vulnerabilities in Open Ticket Request System (OTRS) Help Desk 2.4.x before 2.4.13, 3.0.x before 3.0.15, and 3.1.x before 3.1.9, and OTRS ITSM 2.1.x before 2.1.5, 3.0.x before 3.0.6, and 3.1.x before 3.1.6, allow remote attackers to inject arbitrary web script or HTML via an e-mail message body with (1) a Cascading Style Sheets (CSS) expression property in the STYLE attribute of an arbitrary element or (2) UTF-7 text in an HTTP-EQUIV="CONTENT-TYPE" META element.
Unspecified vulnerability in Kernel/Modules/AdminPackageManager.pm in OTRS-Core in Open Ticket Request System (OTRS) 2.x before 2.4.11 and 3.x before 3.0.10 allows remote authenticated administrators to read arbitrary files via unknown vectors.
The iPhoneHandle package 0.9.x before 0.9.7 and 1.0.x before 1.0.3 in Open Ticket Request System (OTRS) does not properly restrict use of the iPhoneHandle interface, which allows remote authenticated users to gain privileges, and consequently read or modify OTRS core objects, via unspecified vectors.
Multiple cross-site scripting (XSS) vulnerabilities in Open Ticket Request System (OTRS) 2.4.x before 2.4.10 and 3.x before 3.0.7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Open Ticket Request System (OTRS) before 2.4.4 grants ticket access on the basis of single-digit substrings of the CustomerID value, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by visiting a ticket, as demonstrated by leveraging the CustomerID 12 account to read tickets that should be available only to CustomerID 1 or CustomerID 2.
Open Ticket Request System (OTRS) before 2.4.0-beta2 does not properly enforce the move_into permission setting for a queue, which allows remote authenticated users to bypass intended access restrictions and read a ticket by watching this ticket, and then selecting the ticket from the watched-tickets list.