What is CVE-2023-25156?

CVE-2023-25156 is a high-severity vulnerability in Kiwitcms Kiwi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-02-15.

How severe is CVE-2023-25156?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Kiwitcms Kiwi

CVE-2023-25156

Kiwi TCMS, an open source test management system, does not impose rate limits in versions prior to 12.0. This makes it easier to attempt brute-force attacks against the login page. Users should upgrade to v12.0 or later to receive a patch. As a workaround, users may install and configure a rate-limiting proxy in front of Kiwi TCMS.

Published 2023-02-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Kiwitcms Kiwi — versions 12.0
Kiwitcms Kiwi Tcms

Weakness classification (CWE)

References

huntr.dev/bounties/2b1a9be9-45e9-490b-8de0-26a492e79795/ (Permissions Required)
kiwitcms.org/blog/kiwi-tcms-team/2023/02/15/kiwi-tcms-120/ (Release Notes)
github.com/kiwitcms/Kiwi/security/advisories/GHSA-7968-h4m4-ghm9 (Vendor Advisory)
github.com/kiwitcms/Kiwi/commit/0ed213fa0ddb7a6dc77e3c3b99e8fc90ccdaf46f (Patch)

Frequently asked questions

What is CVE-2023-25156?: CVE-2023-25156 is a high-severity vulnerability in Kiwitcms Kiwi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-02-15.
How severe is CVE-2023-25156?: High severity. CVSS v3 base score is 7.5 out of 10.