CVE-2026-55630: Kiwi TCMS stored XSS in TestPlan and TestCase extra_link fields

CVE-2026-55630 · Severity: low · CVSS 3.1 · Published 2026-09-15

Kiwi TCMS, an open-source test management system, is vulnerable to a security flaw where malicious links can be saved within test plans and test cases. If a user clicks on one of these specially crafted links, an attacker could execute unauthorized scripts in the user's browser. While default installations using Docker are protected by built-in security headers, customized setups may be at risk of data theft or account hijacking.

Technologies: Kiwi TCMS, kiwitcms (PyPI). Vendors: Kiwi TCMS, PyPI.

Quick answers

Is CVE-2026-55630 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-55630 being exploited in the wild.
How severe is CVE-2026-55630?
Low severity, with a CVSS score of 3.1, published 15 September 2026.
Which products and versions are affected?
Kiwi TCMS < 16.1; kiwitcms (PyPI) <= 12.4, ECOSYSTEM:introduced=0,last_affected=12.4.
Is there a fix for CVE-2026-55630?
A patch was published on 2026-06-24: Version 16.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-55630 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-55630?
Check whether you run Kiwi TCMS or kiwitcms (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored cross-site scripting (XSS) vulnerability exists in Kiwi TCMS due to improper neutralization of user-controllable input in the `TestCase.extra_link` and `TestPlan.extra_link` fields. An attacker can inject a `javascript:` URI which is rendered verbatim in the UI, allowing for script execution when a user interacts with the link. The vulnerability is mitigated in official Docker deployments by a strict Content-Security-Policy (CSP) header that blocks inline JavaScript, but remains exploitable in environments with modified security settings. The issue is resolved in version 16.1, which introduces proper sanitization and resets non-conforming database records to null.

Affected products

  • Kiwi TCMS Kiwi TCMS < 16.1

Identifiers

  • CVE-2026-55630
  • GHSA-473p-56xx-vg67
  • PYSEC-2026-2551

Timeline

  • 2026-06-24: disclosed: Initial disclosure by reporter
  • 2026-06-24: patched: Version 16.1 released
  • 2026-07-06: advisory: GitHub Advisory published

References

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