CVE-2023-33977

Public Exploit
Stored cross site scripting (XSS) via unrestricted file upload in Kiwi TCMS

Description

Kiwi TCMS is an open source test management system for both manual and automated testing. Kiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introduced upload validators in order to prevent potentially dangerous files from being uploaded and Content-Security-Policy definition to prevent cross-site-scripting attacks. The upload validation checks were not 100% robust which left the possibility to circumvent them and upload a potentially dangerous file which allows execution of arbitrary JavaScript in the browser. Additionally we've discovered that Nginx's `proxy_pass` directive will strip some headers negating protections built into Kiwi TCMS when served behind a reverse proxy. This issue has been addressed in version 12.4. Users are advised to upgrade. Users unable to upgrade who are serving Kiwi TCMS behind a reverse proxy should make sure that additional header values are still passed to the client browser. If they aren't redefining them inside the proxy configuration.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 2.94% Top 15%
Vendor Advisory github.com
Affected: kiwitcms Kiwi
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-33977?
CVE-2023-33977 has been scored as a high severity vulnerability.
How to fix CVE-2023-33977?
To fix CVE-2023-33977, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-33977 being actively exploited in the wild?
It is possible that CVE-2023-33977 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-33977?
CVE-2023-33977 affects kiwitcms Kiwi.
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