CVE-2026-54724: Kiwitcms Kiwi TCMS Has An Open Vulnerability

MODERATE
Advisory Identifier: GHSA-hmj5-jm8h-h9fh
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2026-54724 is a MODERATE (CVSS 6.1) kiwi tcms has an open vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Kiwitcms libraries in the PyPI ecosystem. The issue involves kiwi tcms has an open redirect via unvalidated next parameter in account confirmation endpoint. Remediation is available in the latest vendor maintenance releases.

CVE-2026-54724 at a Glance

CVE Identifier CVE-2026-54724
GHSA Identifier GHSA-hmj5-jm8h-h9fh
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Kiwitcms
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-54724

To remediate this vulnerability, upgrade all affected Kiwitcms dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

kiwitcms fixed: Latest secure release 
pip install kiwitcms>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show kiwitcms

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-54724, inspect your installed packages using pip:

pip show kiwitcms

Analyze the terminal output to locate any version of Kiwitcms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show kiwitcms command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Kiwitcms, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary An open redirect vulnerability in the account confirmation endpoint allows an unauthenticated attacker to craft a URL hosted on a legitimate Kiwi TCMS instance that redirects victims to an arbitrary external domain. The attack surface is particularly relevant for phishing campaigns targeting Kiwi TCMS users, as the malicious link originates from a trusted organizational hostname. ### Impact This is an open redirect vulnerability (CWE-601). Any unauthenticated attacker can exploit it against any user of a Kiwi TCMS deployment. The primary risk is phishing. Because Kiwi TCMS is typically deployed as an internal tool for engineering and QA teams, a redirect from the organization's own hostname carries high implicit trust. An attacker can use this endpoint to: - Redirect victims to a credential-harvesting page styled to match the Kiwi TCMS or corporate SSO login. - Bypass email security filters and link-reputation checks that allowlist the organization's domain. - Distribute malware via a convincing "confirm your account" lure.

CVE-2026-54724 Affected Kiwitcms Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
kiwitcms
pypi/kiwitcms
PyPI
≤ 12.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-hmj5-jm8h-h9fh
Kiwitcms Source Repository REPOSITORY
https://github.com/kiwitcms/Kiwi
Kiwitcms Release RELEASE
https://github.com/kiwitcms/Kiwi/releases/tag/v16.1
Kiwitcms Security Information SECURITY
https://kiwitcms.org/blog/kiwi-tcms-team/2026/06/24/kiwi-tcms-161

Frequently Asked Questions

What is CVE-2026-54724?
CVE-2026-54724 is a security vulnerability in Kiwitcms involving Kiwi TCMS has an Open Redirect via unvalidated next parameter in account confirmation endpoint under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Kiwitcms versions are affected?
Affected versions include releases prior to current release patches across affected packages: kiwitcms.
What version fixes CVE-2026-54724?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is kiwitcms affected?
Yes, kiwitcms is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-54724?
CVE-2026-54724 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2026-54724?
CVE-2026-54724 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check PyPI dependencies for CVE-2026-54724?
Run the dependency tree command: 'pip show kiwitcms'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hmj5-jm8h-h9fh",
  "modified" : "2026-07-06T21:49:19Z",
  "published" : "2026-07-06T21:27:27Z",
  "aliases" : [ "CVE-2026-54724" ],
  "summary" : "Kiwi TCMS has an Open Redirect via unvalidated next parameter in account confirmation endpoint",
  "details" : "### Summary\n\nAn open redirect vulnerability in the account confirmation endpoint allows an unauthenticated attacker to craft a URL hosted on a legitimate Kiwi TCMS instance that redirects victims to an arbitrary external domain. The attack surface is particularly relevant for phishing campaigns targeting Kiwi TCMS users, as the malicious link originates from a trusted organizational hostname.\n\n### Impact\n\nThis is an open redirect vulnerability (CWE-601). Any unauthenticated attacker can exploit it against any user of a Kiwi TCMS deployment.\n\nThe primary risk is phishing. Because Kiwi TCMS is typically deployed as an internal tool for engineering and QA teams, a redirect from the organization's own hostname carries high implicit trust. An attacker can use this endpoint to:\n- Redirect victims to a credential-harvesting page styled to match the Kiwi TCMS or corporate SSO login.\n- Bypass email security filters and link-reputation checks that allowlist the organization's domain.\n- Distribute malware via a convincing \"confirm your account\" lure.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "kiwitcms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "12.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-hmj5-jm8h-h9fh"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kiwitcms/Kiwi"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kiwitcms/Kiwi/releases/tag/v16.1"
  }, {
    "type" : "WEB",
    "url" : "https://kiwitcms.org/blog/kiwi-tcms-team/2026/06/24/kiwi-tcms-161"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-06T21:27:27Z",
    "nvd_published_at" : null
  }
}