Description
Open Ticket Request System (OTRS) 1.0.0 through 1.3.2 and 2.0.0 through 2.0.3, when AttachmentDownloadType is set to inline, renders text/html e-mail attachments as HTML in the browser when the queue moderator attempts to download the attachment, which allows remote attackers to execute arbitrary web script or HTML. NOTE: this particular issue is referred to as XSS by some sources.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | otrs | 1.3.2p01-6 | DSA-973-1 |
Advisories 1
- DSA-973-1 otrs - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 18887 third-party-advisory
- 20051122 OTRS 1.x/2.x Multiple Security Issues mailing-list
- http://moritz-naumann.com/adv/0007/otrsmulti/0007.txt
- otrs-email-attachment-xss(23355) vdb-entry
- 21066 vdb-entry
- 200 third-party-advisory
- http://otrs.org/advisory/OSA-2005-01-en/
- 20051122 OTRS 1.x/2.x Multiple Security Issues mailing-list
- ADV-2005-2535 vdb-entry
- DSA-973 vendor-advisory
- 18101 third-party-advisory
- SUSE-SR:2005:030 vendor-advisory
- 17685 third-party-advisory
- 15537 vdb-entry