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🛡️ CVE-2023-36809 — kiwi-tcms

🟠 CVSS 8.1 — High ⚠️ Exploit Public CWE-79 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Kiwi TCMS's misconfigured HTTP headers allow stored XSS execution with Firefox

Impact

Kiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introduced

changes which were meant to serve all uploaded files as plain text in order to prevent browsers from executing potentially dangerous files when such files are accessed directly!

The previous Nginx configuration was incorrect allowing certain browsers like Firefox to ignore the Content-Type: text/plain header on some occasions thus allowing potentially dangerous scripts to be executed.

Additionally file upload validators and parts of the HTML rendering code have been found to require additional sanitation and improvements.

Patches

  • Updated Nginx content type configuration
  • Improved file upload validation code to prevent more potentially dangerous uploads
  • Sanitization of test plan names used in the tree_view_html() function

References

Disclosed by [M Nadeem Qazi](https://huntr.dev/bounties/511489dd-ba38-4806-9029-b28ab2830aa8/) and

[Mahshooq Zubair](https://huntr.dev/bounties/c6eeb346-fa99-4d41-bc40-b68f8d689223/).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: Required — someone has to click, open or visit something.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2023-36809 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2023-36809 is recorded against 2 packages.

  • kiwi-tcms (fixed in 12.5)
  • kiwitcms (fixed in 12.5)

Timeline and source

Published on 5 July 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
huntr.dev
huntr.dev
kiwitcms.org
www.github.com
www.github.com
github.com
huntr.dev
huntr.dev
kiwitcms.org
www.github.com
www.github.com

Other advisories for this package

kiwi-tcms has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-79: Cross-site Scripting (XSS)) in other software:

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE CWE-79
Public Exploit ⚠️ Yes
Source NVD
Published 2023-07-05
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
kiwi-tcms — 12.5
kiwitcms — 12.5

References

Exploit, Issue Tracking, Third Party Advisory https://huntr.dev/bounties/511489dd-ba38-4806-9029-b28ab2830aa8/
Exploit, Issue Tracking, Third Party Advisory https://huntr.dev/bounties/511489dd-ba38-4806-9029-b28ab2830aa8/

Similar Threats

Exploit Protection

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CVE-2023-36809 carries CVSS 8.1 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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