Description
Code injection exists in Kernel/System/Spelling.pm in Open Ticket Request System (OTRS) 5 before 5.0.24, 4 before 4.0.26, and 3.3 before 3.3.20. In the agent interface, an authenticated remote attacker can execute shell commands as the webserver user via URL manipulation.
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 11 | otrs2 | 5.0.24-1 | — |
| Debian 9 | otrs2 | 5.0.16-1+deb9u3 | DSA-4047-1 |
| Debian 8 | otrs2 | 3.3.18-1+deb8u2 | DSA-4047-1 |
| Debian 7 | otrs2 | 3.3.18-1~deb7u2 | DLA-1212-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | otrs2 | No fix yet | — |
Advisories 2
- DSA-4047-1 otrs2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1212-1 otrs2 - security update Debian Security (DSA / DLA) · Mar 9, 2026