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PYSEC-2026-836

Vulnerability from pysec - Published: 2026-07-07 10:17 - Updated: 2026-07-07 11:30
VLAI
Details

Impact

Previous 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.

Patches

Users should upgrade to v12.0 or later.

Workarounds

Users 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.

References

Disclosed by Ahmed Rabeaa Mosaa

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impacted products
Name purl
kiwitcms pkg:pypi/kiwitcms
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "kiwitcms",
        "purl": "pkg:pypi/kiwitcms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    }
  ],
  "aliases": [
    "CVE-2023-25171",
    "GHSA-7j9h-3jxf-3vrf"
  ],
  "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",
  "id": "PYSEC-2026-836",
  "modified": "2026-07-07T11:30:40.499172Z",
  "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"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service vulnerability on Password reset page"
}



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