{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "5.0.8"
              },
              {
                "fixed": "5.0.9"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "6da7840759c2b345a0e2fd4e796be001e681c6a4"
            },
            {
              "fixed": "b56a568844ff3702495945f73a31d0868285bf88"
            },
            {
              "fixed": "d7eeb6526bd757cfcdf28122066f39803990c5e4"
            }
          ],
          "repo": "https://github.com/django-cms/django-cms",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-hvq6-2r72-p2x7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75526.json"
  },
  "details": "django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. From 5.0.8 until 5.0.9, ContentRenderer.render_placeholder in cms/plugin_rendering.py can pass stored, attacker-controlled values to ContentRenderer.render_exception when plugin rendering fails in edit mode. Values from get_short_description(), the exception message, the placeholder, or placeholder.source are interpolated into a cms-rendering-exception heading and later returned through mark_safe. Because the heading is not escaped, stored HTML executes in an editor’s browser, and settings.DEBUG does not prevent the custom heading from rendering. The fix uses format_html to escape the message before safe placeholder output is returned. This issue is fixed in versions 5.0.9.",
  "id": "CVE-2026-75526",
  "modified": "2026-09-11T03:30:17.453973251Z",
  "published": "2026-08-20T18:11:10.220Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/django-cms/django-cms/releases/tag/5.0.9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75526.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/django-cms/django-cms/security/advisories/GHSA-hvq6-2r72-p2x7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75526"
    },
    {
      "type": "FIX",
      "url": "https://github.com/django-cms/django-cms/commit/b56a568844ff3702495945f73a31d0868285bf88"
    },
    {
      "type": "FIX",
      "url": "https://github.com/django-cms/django-cms/pull/8711"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "django CMS: Stored XSS in edit-mode plugin exception rendering"
}