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CamaleonCMS Missing Authorization via Plugin Administration Endpoints

Type: advisorySources: OSV

CamaleonCMS contains a missing authorization vulnerability that allows any authenticated low-privileged user to access and modify plugin settings by reaching four unprotected plugin-administration endpoints without administrator-level authorization. Attackers can manipulate plugin configuration parameters at runtime across the attack, front_cache, cama_meta_tag, and cama_contact_form plugins to alter cached page behavior, modify public meta-tag output, or reconfigure contact forms, enabling account takeover when chained with stored cross-site scripting through the contact form's before_html field.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-73326
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 23:24 UTC · Revision 1

Source evidence

CamaleonCMS Missing Authorization via Plugin Administration Endpoints

core-osv · Original source

Published 12 Aug 2026, 19:13 UTC

CamaleonCMS contains a missing authorization vulnerability that allows any authenticated low-privileged user to access and modify plugin settings by reaching four unprotected plugin-administration endpoints without administrator-level authorization. Attackers can manipulate plugin configuration parameters at runtime across the attack, front_cache, cama_meta_tag, and cama_contact_form plugins to alter cached page behavior, modify public meta-tag output, or reconfigure contact forms, enabling account takeover when chained with stored cross-site scripting through the contact form's before_html field.

osv:CVE-2026-73326
Complete source record
{
  "id": "6afc3d8ddcbdf79eaf08d4551dbb295558ea1d735ac5c3de8fc0321c67cd0d25",
  "url": "https://osv.dev/vulnerability/CVE-2026-73326",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CamaleonCMS Missing Authorization via Plugin Administration Endpoints",
    "summary": "CamaleonCMS contains a missing authorization vulnerability that allows any authenticated low-privileged user to access and modify plugin settings by reaching four unprotected plugin-administration endpoints without administrator-level authorization. Attackers can manipulate plugin configuration parameters at runtime across the attack, front_cache, cama_meta_tag, and cama_contact_form plugins to alter cached page behavior, modify public meta-tag output, or reconfigure contact forms, enabling account takeover when chained with stored cross-site scripting through the contact form's before_html field.",
    "evidence": "osv:CVE-2026-73326",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-73326",
      "aliases": [
        "CVE-2026-73326"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/owen2345/camaleon-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "cc71e01c909c9e7fa23ddc115981773ce1242b49"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.9.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.9.1",
            "2.9.0",
            "2.8.3",
            "2.8.2",
            "2.8.1",
            "2.8.0",
            "2.7.5",
            "2.7.4",
            "2.7.3",
            "2.7.1",
            "2.7.0",
            "2.6.4",
            "2.6.2",
            "2.6.1",
            "2.6.0.1",
            "2.6.0",
            "2.5.3.1",
            "2.5.3",
            "2.5.1",
            "2.4.6.7",
            "2.4.6.1",
            "2.4.6.0",
            "2.4.5.14",
            "2.4.5.13",
            "2.4.5.12",
            "camaleon_cms-2.4.5.11.gem",
            "2.4.5.11",
            "2.4.5.10",
            "2.4.5.7",
            "2.4.5.1",
            "2.4.5",
            "2.4.4.6",
            "2.4.4.5",
            "2.4.4.3",
            "2.4.4.2",
            "2.4.4",
            "2.4.3.12",
            "2.4.3.11",
            "2.4.3.10",
            "2.4.3.7",
            "2.4.3",
            "2.4.2",
            "2.4.1",
            "2.4.0",
            "2.3.7",
            "2.3.6",
            "2.3.5",
            "2.3.4",
            "2.3.3",
            "2.3.2",
            "2.3.1",
            "2.2.0",
            "2.1.2.0",
            "v2.1.1.3",
            "2.1.2",
            "2.1.1",
            "v2.0.0",
            "0.2.0",
            "0.1.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73326.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.156650620Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73326.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-73326",
        "https://www.vulncheck.com/advisories/camaleoncms-missing-authorization-via-plugin-administration-endpoints",
        "https://github.com/owen2345/camaleon-cms",
        "https://enrik-m.github.io/posts/Camaleon-CMS-Vulnerabilties/#31-broken-access-control-on-admin-endpoints"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73326.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-73326",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499249,
  "published_at": "2026-08-12T19:13:28.587+00:00"
}