CVE-2023-36809Kiwi TCMS's misconfigured HTTP headers allow stored XSS execution with Firefox
- 8.1HighCVSS base score
- 0.69%Exploitation in 30 daysEPSS · top 47% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
Kiwi TCMS, an open source test management system allows users to upload attachments to test plans, test cases, etc. Versions of Kiwi TCMS prior to 12.5 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 had been found to require additional sanitation and improvements. Version 12.5 fixes this vulnerability with updated Nginx content type configuration, improved file upload validation code to prevent more potentially dangerous uploads, and Sanitization of test plan names used in the `tree_view_html()` function.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By GitHub_M
- 8 days later
· 8 days later
Published
- 16 months later
· 16 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.69% · top 47% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIkiwitcmsGHSA-jpgw-2r9m-8qfw (opens in a new tab)
References
References6
- https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-jpgw-2r9m-8qfw (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://huntr.dev/bounties/511489dd-ba38-4806-9029-b28ab2830aa8/ (opens in a new tab)x_refsource_MISCx_transferred
- https://huntr.dev/bounties/c6eeb346-fa99-4d41-bc40-b68f8d689223/ (opens in a new tab)x_refsource_MISCx_transferred
- https://kiwitcms.org/blog/kiwi-tcms-team/2023/07/04/kiwi-tcms-125/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.github.com/kiwitcms/kiwi/commit/195ea53eaaf360c19227c864cc0fe58910032c3c (opens in a new tab)x_refsource_MISCx_transferred
- https://www.github.com/kiwitcms/kiwi/commit/ffb00450be52fe11a82a2507632c2328cae4ec9d (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-2090 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-jpgw-2r9m-8qfw (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-36809)Record last updated .