{"id":"PYSEC-2026-836","summary":"Denial of service vulnerability on Password reset page","details":"### Impact\nPrevious versions of Kiwi TCMS do not impose rate limits which makes it easier to attempt denial-of-service attacks against the Password reset page. An attacker could potentially send a large number of emails if they know the email addresses of users in Kiwi TCMS. Additionally that may strain SMTP resources. \n\n### Patches\nUsers should upgrade to v12.0 or later.\n\n### Workarounds\nUsers may install and configure a rate-limiting proxy in front of Kiwi TCMS such as Nginx and/or configure rate limits on their email server when possible.\n\n### References\n[Disclosed by Ahmed Rabeaa Mosaa](https://huntr.dev/bounties/3b712cb6-3fa3-4f71-8562-7a7016c6262e)\n","aliases":["CVE-2023-25171","GHSA-7j9h-3jxf-3vrf"],"modified":"2026-07-07T11:46:04.756932888Z","published":"2026-07-07T10:17:27.666049Z","references":[{"type":"WEB","url":"https://github.com/kiwitcms/Kiwi/security/advisories/GHSA-7j9h-3jxf-3vrf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-25171"},{"type":"WEB","url":"https://github.com/kiwitcms/Kiwi/commit/761305d04f5910ba14cc04d1255a8f1afdbb87f3"},{"type":"PACKAGE","url":"https://github.com/kiwitcms/Kiwi"},{"type":"WEB","url":"https://huntr.dev/bounties/3b712cb6-3fa3-4f71-8562-7a7016c6262e"},{"type":"WEB","url":"https://kiwitcms.org/blog/kiwi-tcms-team/2023/02/15/kiwi-tcms-120"},{"type":"PACKAGE","url":"https://pypi.org/project/kiwitcms"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-7j9h-3jxf-3vrf"}],"affected":[{"package":{"name":"kiwitcms","ecosystem":"PyPI","purl":"pkg:pypi/kiwitcms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12.0"}]}],"versions":["10.0","10.1","10.2","10.3","10.3.999","10.4","10.5","11.0","11.1","11.3","11.4","11.5","11.6","11.7","6.10","6.11","6.2.1","6.3","6.4","6.5","6.5.3","6.6","6.7","6.8","6.9","7.0","7.1","7.2","7.2.1","7.3","8.0","8.1","8.1.99","8.2","8.3","8.4","8.5","8.6","8.6.1","8.7","8.8","8.9","9.0","9.999"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/kiwitcms/PYSEC-2026-836.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}