Otrs was updated to 5.0.42, fixing lots of bugs and security issues:

  https://community.otrs.com/otrs-community-edition-5s-patch-level-42/

- CVE-2020-1773 boo#1168029 OSA-2020-10:
  * Session / Password / Password token leak
    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.
- CVE-2020-1772 boo#1168029 OSA-2020-09:
  * Information Disclosure
    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.
- CVE-2020-1771 boo#1168030 OSA-2020-08:
  * Possible XSS in Customer user address book
    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.
- CVE-2020-1770 boo#1168031 OSA-2020-07:
  * Information disclosure in support bundle files
    Support bundle generated files could contain sensitive information
    that might be unwanted to be disclosed.
- CVE-2020-1769 boo#1168032 OSA-2020-06:
  * Autocomplete in the form login screens
    In the login screens (in agent and customer interface), Username
    and Password fields use autocomplete, which might be considered
    as security issue.

Update to 5.0.41
  https://community.otrs.com/otrs-community-edition-5s-patch-level-41/
  * bug#14912 - Installer refers to non-existing documentation

- added code to upgrade OTRS from 4 to 5

  READ UPGRADING.SUSE
  * steps 1 to 4 are done by rpm pkg
  * steps 5 to *END* need to be done manually cause of DB backup

Update to 5.0.40

  https://community.otrs.com/otrs-community-edition-5s-patch-level-40/

- CVE-2020-1766 boo#1160663 OSA-2020-02:
    Improper handling of uploaded inline images
    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.
  * CVE-2020-1765, OSA-2020-01:
    Spoofing of From field in several screens
    An improper control of parameters allows the spoofing of the from
    fields of the following screens:
    AgentTicketCompose, AgentTicketForward, AgentTicketBounce and
    AgentTicketEmailOutbound
  * run bin/otrs.Console.pl Maint::Config::Rebuild after the upgrade

- Update 5.0.39
  https://community.otrs.com/otrs-community-edition-5s-patch-level-39/

* CVE-2019-18180 boo#1157001 OSA-2019-15:
  Denial of service
  OTRS can be put into an endless loop by providing filenames with
  overly long extensions. This applies to the PostMaster
  (sending in email) and also upload
  (attaching files to mails, for example).

* CVE-2019-18179 OSA-2019-14:
  Information Disclosure
  An attacker who is logged into OTRS as an agent is able to list
  tickets assigned to other agents, which are in the queue where
  attacker doesn’t have permissions.

Update to 5.0.38
  https://community.otrs.com/release-notes-otrs-5s-patch-level-38/


* CVE-2019-16375, boo#1156431 OSA-2019-13:
  Stored XXS
  An attacker who is logged into OTRS 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 compose an answer
  to the original article.

Update to 5.0.37
  https://community.otrs.com/release-notes-otrs-5s-patch-level-37/



* CVE-2019-13458, boo#1141432, OSA-2019-12:

  Information Disclosure
  An attacker who is logged into OTRS as an agent user with
  appropriate permissions can leverage OTRS tags in templates in
  order to disclose hashed user passwords.

* CVE-2019-13457, boo#1141431, OSA-2019-11:

  Information Disclosure
  A customer user can use the search results to disclose information
  from their “company” tickets (with the same CustomerID), even when
  CustomerDisableCompanyTicketAccess setting is turned on.

* CVE-2019-12746, boo#1141430, OSA-2019-10:

  Session ID Disclosure
  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 potentially abused
  in order to impersonate the agent user.

Update to 5.0.36

  https://community.otrs.com/release-notes-otrs-5s-patch-level-36/

* CVE-2019-12497, boo#1137614, OSA-2019-09:
  Information Disclosure
  In the customer or external frontend, personal information of agents
  can be disclosed like Name and mail address in external notes.

* CVE-2019-12248, boo#1137615, OSA-2019-08:
  Loading External Image Resources
  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.

Update to 5.0.35

  https://community.otrs.com/release-notes-otrs-5s-patch-level-35/

* CVE-2019-10067, boo#1139406, OSA-2019-05:

  Reflected and Stored XSS
  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.

* CVE-2019-9892, boo#1139406, OSA-2019-04:

  XXE Processing
  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 of OTRS filesystem.

- update missing CVE for OSA-2018-10, OSA-2019-01

Update to 5.0.34

* https://community.otrs.com/release-notes-otrs-5s-patch-level-34/

* CVE-2019-9752, boo#1122560, OSA-2019-01:
  Stored XSS
  An attacker who is logged into OTRS as an agent or a customer user
  may upload a carefully crafted resource in order to cause execution
  of JavaScript in the context of OTRS.

Update to 5.0.33

* https://community.otrs.com/release-notes-otrs-5s-patch-level-33/

Update to 5.0.26

* https://www.otrs.com/release-notes-otrs-5s-patch-level-26
* https://www.otrs.com/release-notes-otrsitsm-module-5s-patch-level-26/

- remove obsolete
* otrs-scheduler.service
* otrs-scheduler.init