Vulnerability-Lookup

CVE-2026-54623 (GCVE-0-2026-54623)

Vulnerability from cvelistv5 – Published: 2026-08-20 18:02 – Updated: 2026-08-20 18:47

Title

django CMS: Plugin move endpoint allows cyclic reparenting (DoS)

Summary

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.8, the move_plugin endpoint in cms/admin/placeholderadmin.py accepts an attacker-controlled plugin_parent value without rejecting a plugin’s own identifier or a descendant identifier. A staff user with plugin-change permission under CMS_PERMISSION can create a parent_id cycle in the plugin tree. The _get_descendants_cte and _get_ancestors_cte queries in cms/models/pluginmodel.py have no cycle guard, so get_descendants() and later rendering, copy, or delete operations can recurse indefinitely or reach a database recursion limit, corrupting the tree and consuming request workers. This issue is fixed in versions 5.0.8.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-20 18:44 UTC

CWE

CWE-674 - Uncontrolled Recursion
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/django-cms/django-cms/security…	x_refsource_CONFIRM
https://github.com/django-cms/django-cms/pull/8645	x_refsource_MISC
https://github.com/django-cms/django-cms/commit/7…	x_refsource_MISC
https://github.com/django-cms/django-cms/releases…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
django-cms	django-cms	Affected: < 5.0.8	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-54623

Vulnerability from fkie_nvd - Published: 2026-08-20 18:16 - Updated: 2026-09-18 20:09

Severity

7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/django-cms/django-cms/commit/7642a98ab3170793c0b27b4125dd1f3d318b8a1c
	security-advisories@github.com	https://github.com/django-cms/django-cms/pull/8645
	security-advisories@github.com	https://github.com/django-cms/django-cms/releases/tag/5.0.8
	security-advisories@github.com	https://github.com/django-cms/django-cms/security/advisories/GHSA-8jj7-4v57-frf5

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-8JJ7-4V57-FRF5

Vulnerability from github – Published: 2026-08-24 20:09 – Updated: 2026-08-24 20:09

Summary

django CMS: Plugin move endpoint allows cyclic reparenting (DoS)

Details

Summary

The move_plugin admin endpoint does not prevent a plugin from being reparented under itself or one of its own descendants. Doing so creates a cycle in the plugin tree, after which the recursive descendant/ancestor SQL queries loop without terminating, stalling the request worker.

Details

move_plugin (in cms/admin/placeholderadmin.py) accepts a plugin_parent POST parameter and, for an in-placeholder move, sets the plugin's parent to the target without any cycle/ancestor check. If the target parent is a descendant of the moved plugin, the resulting parent_id graph contains a cycle.

Descendant and ancestor traversal is implemented with WITH RECURSIVE CTEs (_get_descendants_cte / _get_ancestors_cte in cms/models/pluginmodel.py) that have no cycle clause or depth limit. On a cyclic tree these recurse indefinitely (PostgreSQL/SQLite) or error at the recursion limit (MySQL). get_descendants() is invoked while building the move response and on subsequent operations on the affected subtree.

Impact

An authenticated staff user with permission to change plugins in at least one placeholder can corrupt that placeholder's plugin tree, causing requests that traverse it (rendering, copy, delete) to hang and consume application workers (denial of service). The tree is also left in a corrupted state.

Requires CMS_PERMISSION/plugin-change permission on a placeholder.

Patches

Fixed in 5.0.8: move_plugin now rejects (HTTP 400) any move that would place a plugin inside itself or one of its descendants, before any tree mutation or traversal.

Workarounds

None. Upgrade is recommended.

Credits

Reported by the security team at the University of Sydney ([@reporter]).

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Show details on source website

JSON

To clipboard

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        "name": "django-cms"
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    "github_reviewed": true,
    "github_reviewed_at": "2026-08-24T20:09:43Z",
    "nvd_published_at": "2026-08-20T18:16:28Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nThe `move_plugin` admin endpoint does not prevent a plugin from being   reparented under itself or one of its own descendants. Doing so creates a  cycle in the plugin tree, after which the recursive descendant/ancestor SQL  queries loop without terminating, stalling the request worker.\n\n### Details\n`move_plugin` (in `cms/admin/placeholderadmin.py`) accepts a  `plugin_parent` POST parameter and, for an in-placeholder move, sets the  plugin\u0027s parent to the target without any cycle/ancestor check. If the target  parent is a descendant of the moved plugin, the resulting `parent_id` graph  contains a cycle.\n\nDescendant and ancestor traversal is implemented with `WITH RECURSIVE` CTEs  (`_get_descendants_cte` / `_get_ancestors_cte` in `cms/models/pluginmodel.py`)  that have no cycle clause or depth limit. On a cyclic tree these recurse  indefinitely (PostgreSQL/SQLite) or error at the recursion limit (MySQL).  `get_descendants()` is invoked while building the move response and on  subsequent operations on the affected subtree.\n\n### Impact\nAn authenticated staff user with permission to change plugins in at least one   placeholder can corrupt that placeholder\u0027s plugin tree, causing requests that  traverse it (rendering, copy, delete) to hang and consume application workers  (denial of service). The tree is also left in a corrupted state.\n\nRequires `CMS_PERMISSION`/plugin-change permission on a placeholder.\n\n### Patches\nFixed in 5.0.8: `move_plugin` now rejects (HTTP 400) any move  that would place a plugin inside itself or one of its descendants, before any  tree mutation or traversal.\n\n### Workarounds\nNone. Upgrade is recommended.\n\n### Credits\nReported by the security team at the University of Sydney ([@reporter]).",
  "id": "GHSA-8jj7-4v57-frf5",
  "modified": "2026-08-24T20:09:43Z",
  "published": "2026-08-24T20:09:43Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/security/advisories/GHSA-8jj7-4v57-frf5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54623"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/pull/8645"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/commit/7642a98ab3170793c0b27b4125dd1f3d318b8a1c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/django-cms/django-cms"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/releases/tag/5.0.8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "django CMS: Plugin move endpoint allows cyclic reparenting (DoS)"
}

PYSEC-2026-3822

Vulnerability from pysec - Published: 2026-09-10 09:44 - Updated: 2026-09-10 11:02

Details

Summary

Details

Impact

Requires CMS_PERMISSION/plugin-change permission on a placeholder.

Patches

Fixed in 5.0.8: move_plugin now rejects (HTTP 400) any move that would place a plugin inside itself or one of its descendants, before any tree mutation or traversal.

Workarounds

None. Upgrade is recommended.

Credits

Reported by the security team at the University of Sydney ([@reporter]).

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Impacted products

Name	purl
django-cms	pkg:pypi/django-cms

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django-cms",
        "purl": "pkg:pypi/django-cms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.0.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.1",
        "2.0.2",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.2",
        "2.2.1",
        "2.3.1",
        "2.3.2",
        "2.3.3",
        "2.3.4",
        "2.3.5",
        "2.3.6",
        "2.3.7",
        "2.3.8",
        "2.4.0",
        "2.4.1",
        "2.4.2",
        "2.4.3",
        "3.0",
        "3.0.1",
        "3.0.10",
        "3.0.11",
        "3.0.12",
        "3.0.13",
        "3.0.14",
        "3.0.15",
        "3.0.16",
        "3.0.17",
        "3.0.18",
        "3.0.2",
        "3.0.3",
        "3.0.4",
        "3.0.5",
        "3.0.6",
        "3.0.7",
        "3.0.8",
        "3.0.9",
        "3.1.0",
        "3.1.0.b1",
        "3.1.0rc1",
        "3.1.0rc2",
        "3.1.1",
        "3.1.2",
        "3.1.3",
        "3.1.4",
        "3.1.5",
        "3.1.6",
        "3.1.7",
        "3.10.0",
        "3.10.0rc1",
        "3.10.0rc2",
        "3.10.1",
        "3.10.1rc1",
        "3.11.0",
        "3.11.1",
        "3.11.10",
        "3.11.11",
        "3.11.1rc1",
        "3.11.2",
        "3.11.3",
        "3.11.4",
        "3.11.5",
        "3.11.6",
        "3.11.7",
        "3.11.8",
        "3.11.9",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.3.0",
        "3.3.0rc2",
        "3.3.0rc3",
        "3.3.0rc4",
        "3.3.1",
        "3.3.2",
        "3.3.3",
        "3.3.4",
        "3.4.0",
        "3.4.1",
        "3.4.2",
        "3.4.3",
        "3.4.4",
        "3.4.5",
        "3.4.6",
        "3.4.7",
        "3.5.0",
        "3.5.1",
        "3.5.2",
        "3.5.3",
        "3.5.4",
        "3.6.0",
        "3.6.0rc1",
        "3.6.0rc3",
        "3.6.1",
        "3.7.0",
        "3.7.0rc1",
        "3.7.0rc2",
        "3.7.1",
        "3.7.2",
        "3.7.3",
        "3.7.4",
        "3.8.0",
        "3.8.0rc1",
        "3.8.1",
        "3.8.2",
        "3.9.0",
        "3.9.0rc1",
        "3.9.0rc2",
        "3.9.0rc3",
        "4.1.0",
        "4.1.0rc1",
        "4.1.0rc2",
        "4.1.0rc3",
        "4.1.0rc4",
        "4.1.0rc5",
        "4.1.1",
        "4.1.10",
        "4.1.11",
        "4.1.2",
        "4.1.3",
        "4.1.4",
        "4.1.5",
        "4.1.6",
        "4.1.7",
        "4.1.9",
        "5.0.0",
        "5.0.0a1",
        "5.0.1",
        "5.0.2",
        "5.0.3",
        "5.0.4",
        "5.0.5",
        "5.0.6",
        "5.0.7"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54623",
    "GHSA-8jj7-4v57-frf5"
  ],
  "details": "### Summary\nThe `move_plugin` admin endpoint does not prevent a plugin from being   reparented under itself or one of its own descendants. Doing so creates a  cycle in the plugin tree, after which the recursive descendant/ancestor SQL  queries loop without terminating, stalling the request worker.\n\n### Details\n`move_plugin` (in `cms/admin/placeholderadmin.py`) accepts a  `plugin_parent` POST parameter and, for an in-placeholder move, sets the  plugin\u0027s parent to the target without any cycle/ancestor check. If the target  parent is a descendant of the moved plugin, the resulting `parent_id` graph  contains a cycle.\n\nDescendant and ancestor traversal is implemented with `WITH RECURSIVE` CTEs  (`_get_descendants_cte` / `_get_ancestors_cte` in `cms/models/pluginmodel.py`)  that have no cycle clause or depth limit. On a cyclic tree these recurse  indefinitely (PostgreSQL/SQLite) or error at the recursion limit (MySQL).  `get_descendants()` is invoked while building the move response and on  subsequent operations on the affected subtree.\n\n### Impact\nAn authenticated staff user with permission to change plugins in at least one   placeholder can corrupt that placeholder\u0027s plugin tree, causing requests that  traverse it (rendering, copy, delete) to hang and consume application workers  (denial of service). The tree is also left in a corrupted state.\n\nRequires `CMS_PERMISSION`/plugin-change permission on a placeholder.\n\n### Patches\nFixed in 5.0.8: `move_plugin` now rejects (HTTP 400) any move  that would place a plugin inside itself or one of its descendants, before any  tree mutation or traversal.\n\n### Workarounds\nNone. Upgrade is recommended.\n\n### Credits\nReported by the security team at the University of Sydney ([@reporter]).",
  "id": "PYSEC-2026-3822",
  "modified": "2026-09-10T11:02:03.497546Z",
  "published": "2026-09-10T09:44:53.323481Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/security/advisories/GHSA-8jj7-4v57-frf5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54623"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/pull/8645"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/commit/7642a98ab3170793c0b27b4125dd1f3d318b8a1c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/django-cms/django-cms"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/releases/tag/5.0.8"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/django-cms"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-8jj7-4v57-frf5"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "django CMS: Plugin move endpoint allows cyclic reparenting (DoS)"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CVE-2026-54623 (GCVE-0-2026-54623)

FKIE_CVE-2026-54623

GHSA-8JJ7-4V57-FRF5

Summary

Details

Impact

Patches

Workarounds

Credits

PYSEC-2026-3822

Summary

Details

Impact

Patches

Workarounds

Credits

Tags

Sightings

Nomenclature

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