Privilege escalation in tgstation-server

1) Improper privilege management

EUVDB-ID: #VU102467

Risk: Medium

CVSSv4.0: 6.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-21611

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges within the application.

The vulnerability exists due to improper privilege management within authorization API methods. A remote user can execute arbitrary actions regardless of their permission.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

tgstation-server: 6.11.0 - 6.12.2

CPE2.3

• cpe:2.3:a:tgstation13.org:tgstation-server:6.11.0:*:*:*:*:*:*:*
• cpe:2.3:a:tgstation13.org:tgstation-server:6.11.1:*:*:*:*:*:*:*
• cpe:2.3:a:tgstation13.org:tgstation-server:6.11.2:*:*:*:*:*:*:*

External links

https://github.com/tgstation/tgstation-server/commit/e7b1189620baaf03c2d23f6e164d07c7c7d87d57
https://github.com/tgstation/tgstation-server/issues/2064
https://github.com/tgstation/tgstation-server/security/advisories/GHSA-rf5r-q276-vrc4

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.