CVE-2023-50982

Severity: critical (CVSS 9.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-01-08 · updated 2026-06-17
Weakness: CWE-79

Description

Stud.IP 5.x through 5.3.3 allows XSS with resultant upload of executable files, because upload_action and edit_action in Admin_SmileysController do not check the file extension. This leads to remote code execution with the privileges of the www-data user. The fixed versions are 5.3.4, 5.2.6, 5.1.7, and 5.0.9.

Affected products

Studip Stud.Ip: before 5.0.9; from 5.1 before 5.1.7; from 5.2 before 5.2.6; from 5.3 before 5.3.4 — fixed in 5.0.9, 5.1.7, 5.2.6, 5.3.4

How to fix

Upgrade to a fixed version: Studip Stud.Ip 5.0.9, 5.1.7, 5.2.6, 5.3.4. Check the vendor advisory for mitigations.

References

https://gitlab.studip.de/studip/studip/-/tags
https://rehmeinfosec.de/labor/cve-2023-50982
https://sourceforge.net/projects/studip/files/Stud.IP/5.4/
https://gitlab.studip.de/studip/studip/-/tags
https://rehmeinfosec.de/labor/cve-2023-50982
https://sourceforge.net/projects/studip/files/Stud.IP/5.4/

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