kiwitcms vulnerable to stored XSS via unrestricted files upload
Impact
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, see GHSA-fwcf-753v-fgcj and Content-Security-Policy definition to prevent cross-site-scripting attacks, see GHSA-2wcr-87wf-cf9j.
The upload validation checks were not robust enough which left the possibility of an attacker to circumvent them and upload a potentially dangerous file. Exploting this flaw a combination of files could be uploaded so that they work together to circumvent the existing Content-Security-Policy and allow execution of arbitrary JavaScript in the browser.
Patches
- File upload validation code has been improved
- Kiwi TCMS will now force
Content-Type: text/plainwhen serving uploaded files
Workarounds
- Force the Content-Type header via a custom Django middleware, see
ExtraHeadersMiddlewarein https://github.com/kiwitcms/Kiwi/blob/master/tcms/core/middleware.py#L23 and/or - Force the Content-Type header via Nginx overrides, see
location /uploads/in https://github.com/kiwitcms/Kiwi/blob/master/etc/nginx.conf
References
Disclosed by Antonio Spataro and ek1ng. Additional credits to Ahmed Rabeaa Mosa.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | kiwitcms | < 12.3 | 12.3 |
Referencias
- https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-2wcr-87wf-cf9j
- https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-fwcf-753v-fgcj
- https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-x7c2-7wvg-jpx7
- https://nvd.nist.gov/vuln/detail/CVE-2023-32686
- https://github.com/kiwitcms/Kiwi
- https://kiwitcms.org/blog/kiwi-tcms-team/2023/05/22/kiwi-tcms-123
- https://pypi.org/project/kiwitcms
- https://github.com/advisories/GHSA-x7c2-7wvg-jpx7
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N- Debilidad (CWE)
CWE-434, CWE-79- Plataforma
- Python (PyPI)
- Paquete
kiwitcms- Publicada
- 22.05.2023
- Actualizado
- 11.10.2026 15:17
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2026-1500 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-x7c2-7wvg-jpx7 - CC BY 4.0
Historial de vulnerabilidades: kiwitcms
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 13
- Primera → última
- 11.2022 07.2026
- Sin corrección
- 3
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 7
- Media 3
- Baja 3
Divulgaciones por año
- 2022: 1
- 2023: 9
- 2024: 0
- 2025: 0
- 2026: 3
-
kiwitcms vulnerable to stored XSS via unrestricted files upload esta entrada
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