Specially crafted string in OTRS system configuration can allow the execution of any system command.

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.

When an agent user is renamed or set to invalid the session belonging to the user is keept active. The session can not be used to access ticket data in the case the agent is invalid. This issue affects ((OTRS)) Community Edition: 6.0.28 and prior versions. OTRS: 7.0.18 and prior versions, 8.0.4. and prior versions.

When user downloads PGP or S/MIME keys/certificates, exported file has same name for private and public keys. Therefore it's possible to mix them and to send private key to the third-party instead of public key. This issue affects ((OTRS)) Community Edition: 5.0.42 and prior versions, 6.0.27 and prior versions. OTRS: 7.0.16 and prior versions.

An attacker with the ability to generate session IDs or password reset tokens, either by being able to authenticate or by exploiting OSA-2020-09, may be able to predict other users session IDs, password reset tokens and automatically generated passwords. This issue affects ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS; 7.0.15 and prior versions.

It's possible to craft Lost Password requests with wildcards in the Token value, which allows attacker to retrieve valid Token(s), generated by users which already requested new passwords. This issue affects: ((OTRS)) Community Edition 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS: 7.0.15 and prior versions.

Attacker is able craft an article with a link to the customer address book with malicious content (JavaScript). When agent opens the link, JavaScript code is executed due to the missing parameter encoding. This issue affects: ((OTRS)) Community Edition: 6.0.26 and prior versions. OTRS: 7.0.15 and prior versions.

Support bundle generated files could contain sensitive information that might be unwanted to be disclosed. This issue affects: ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS: 7.0.15 and prior versions.

In the login screens (in agent and customer interface), Username and Password fields use autocomplete, which might be considered as security issue. This issue affects: ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS: 7.0.15 and prior versions.

An issue was discovered in Open Ticket Request System (OTRS) 7.0.x through 7.0.11, and Community Edition 5.0.x through 5.0.37 and 6.0.x through 6.0.22. An attacker who is logged in as an agent or customer user with appropriate permissions can create a carefully crafted string containing malicious JavaScript code as an article body. This malicious code is executed when an agent composes an answer to the original article.

Due to improper handling of uploaded images it is possible in very unlikely and rare conditions to force the agents browser to execute malicious javascript from a special crafted SVG file rendered as inline jpg file. This issue affects: ((OTRS)) Community Edition 5.0.x version 5.0.39 and prior versions; 6.0.x version 6.0.24 and prior versions. OTRS 7.0.x version 7.0.13 and prior versions.

An improper control of parameters allows the spoofing of the from fields of the following screens: AgentTicketCompose, AgentTicketForward, AgentTicketBounce and AgentTicketEmailOutbound. This issue affects: ((OTRS)) Community Edition 5.0.x version 5.0.39 and prior versions; 6.0.x version 6.0.24 and prior versions. OTRS 7.0.x version 7.0.13 and prior versions.

An issue was discovered in Open Ticket Request System (OTRS) 7.0.x through 7.0.12, and Community Edition 5.0.x through 5.0.38 and 6.0.x through 6.0.23. An attacker who is logged into OTRS as an agent is able to list tickets assigned to other agents, even tickets in a queue where the attacker doesn't have permissions.

Improper Check for filenames with overly long extensions in PostMaster (sending in email) or uploading files (e.g. attaching files to mails) of ((OTRS)) Community Edition and OTRS allows an remote attacker to cause an endless loop. This issue affects: OTRS AG: ((OTRS)) Community Edition 5.0.x version 5.0.38 and prior versions; 6.0.x version 6.0.23 and prior versions. OTRS AG: OTRS 7.0.x version 7.0.12 and prior versions.

An issue was discovered in Open Ticket Request System (OTRS) 7.0.x through 7.0.8, and Community Edition 5.0.x through 5.0.36 and 6.0.x through 6.0.19. An attacker who is logged into OTRS as an agent user with appropriate permissions can leverage OTRS notification tags in templates in order to disclose hashed user passwords.

An issue was discovered in Open Ticket Request System (OTRS) Community Edition 5.0.x through 5.0.36 and 6.0.x through 6.0.19. A user logged into OTRS as an agent might unknowingly disclose their session ID by sharing the link of an embedded ticket article with third parties. This identifier can be then be potentially abused in order to impersonate the agent user.

An issue was discovered in Open Ticket Request System (OTRS) 7.0.x through 7.0.7, Community Edition 6.0.x through 6.0.19, and Community Edition 5.0.x through 5.0.36. An attacker could send a malicious email to an OTRS system. If a logged-in agent user quotes it, the email could cause the browser to load external image resources.

An issue was discovered in Open Ticket Request System (OTRS) 7.0.x through 7.0.8, Community Edition 6.0.x through 6.0.19, and Community Edition 5.0.x through 5.0.36. In the customer or external frontend, personal information of agents (e.g., Name and mail address) can be disclosed in external notes.

An issue was discovered in Open Ticket Request System (OTRS) 5.x through 5.0.34, 6.x through 6.0.17, and 7.x through 7.0.6. An attacker who is logged into OTRS as an agent user with appropriate permissions may try to import carefully crafted Report Statistics XML that will result in reading of arbitrary files on the OTRS filesystem.

An issue was discovered in Open Ticket Request System (OTRS) 7.x through 7.0.6 and Community Edition 5.0.x through 5.0.35 and 6.0.x through 6.0.17. An attacker who is logged into OTRS as an agent user with appropriate permissions may manipulate the URL to cause execution of JavaScript in the context of OTRS.