CVE-2023-50982: stud.ip XSS — Exploit

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.

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CVSS v3.1 Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
studip	stud.ip	< 5.0.9
studip	stud.ip	5.1 — 5.1.7
studip	stud.ip	5.2 — 5.2.6
studip	stud.ip	5.3 — 5.3.4

References

Exploits

https://rehmeinfosec.de/labor/cve-2023-50982 https://rehmeinfosec.de/labor/cve-2023-50982

Other References

https://gitlab.studip.de/studip/studip/-/tags https://sourceforge.net/projects/studip/files/Stud.IP/5.4/ https://gitlab.studip.de/studip/studip/-/tags https://sourceforge.net/projects/studip/files/Stud.IP/5.4/

Frequently Asked Questions

What is CVE-2023-50982? +

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. It has a CVSS v3.1 base score of 9.0 (CRITICAL).

How severe is CVE-2023-50982? +

CVE-2023-50982 has a CVSS v3.1 score of 9.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2023-50982? +

CVE-2023-50982 affects products from studip, specifically: stud.ip. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-50982? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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