Security advisory

{
  "id": "094c122bbe5bbf6e5f3982bca11faf3476fd8df2546fc77ce9635134bcacf363",
  "url": "https://osv.dev/vulnerability/CVE-2026-21629",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-21629",
    "summary": "The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.",
    "evidence": "osv:CVE-2026-21629",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-21629",
      "aliases": [
        "BIT-joomla-2026-21629",
        "CVE-2026-21629"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/joomla/joomla-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c1acb7e6973bd549fe35a02659fe851ff1a37dfe"
                },
                {
                  "fixed": "47b48aeceae211ae8016cf1da2b821a0d0467f55"
                },
                {
                  "introduced": "0db7d502466ae41242ad761424f76378458fb819"
                },
                {
                  "fixed": "e7d45e19c77cc0fa3b9a70af48b05bb937a7f011"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "5.4.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.0.0"
                      },
                      {
                        "fixed": "6.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "6.0.3",
            "5.4.3",
            "6.0.3-rc1",
            "5.4.3-rc1",
            "6.0.2",
            "5.4.2",
            "6.0.2-rc1",
            "5.4.2-rc1",
            "6.0.1",
            "5.4.1",
            "6.0.1-rc2",
            "5.4.1-rc2",
            "6.0.1-rc1",
            "5.4.1-rc1",
            "6.0.0",
            "5.4.0",
            "5.4.0-rc1",
            "5.4.0-beta3",
            "5.4.0-beta2",
            "5.4.0-beta1",
            "5.4.0-alpha3",
            "5.4.0-alpha2",
            "5.4.0-alpha1",
            "5.3.0-alpha3",
            "5.3.0-alpha2",
            "5.3.0-alpha1",
            "5.2.0-beta1",
            "5.2.0-alpha3",
            "5.2.0-alpha1",
            "5.1.0-alpha4",
            "5.1.0-alpha3",
            "5.1.0-alpha2",
            "5.1.0-alpha1",
            "5.0.0-rc",
            "5.0.0-beta3",
            "5.0.0-beta2",
            "5.0.0-beta1",
            "5.0.0-alpha4",
            "5.0.0-alpha3",
            "5.0.0-alpha2",
            "5.0.0-alpha1",
            "4.2.0-rc1",
            "4.2.0-beta3",
            "psr12final",
            "psr12anchor",
            "4.2.0-beta2",
            "4.2.0-beta1",
            "4.2.0-alpha3",
            "cypress-io",
            "cypress",
            "4.2.0-alpha2",
            "4.2.0-alpha1",
            "4.1.0-rc1",
            "4.1.0-beta3",
            "4.1.0-beta2",
            "4.1.0-beta1",
            "4.1.0-alpha3",
            "4.1.0-alpha2",
            "4.1.0-alpha1",
            "4.0.0-beta3",
            "4.0.0-beta2",
            "4.0.0-beta",
            "4.0.0-alpha12",
            "4.0.0-alpha11",
            "4.0.0-alpha10",
            "4.0.0-alpha9",
            "4.0.0-alpha8",
            "4.0.0-alpha7",
            "4.0.0-alpha6",
            "4.0.0-alpha5",
            "4.0.0-alpha4",
            "4.0.0-alpha2",
            "4.0.0-alpha1",
            "3.5.0-beta2",
            "3.4.5",
            "3.5.0-beta",
            "3.4.4",
            "3.4.4-rc2",
            "3.4.4-rc",
            "3.4.3",
            "3.4.2",
            "3.4.2-rc",
            "3.4.1",
            "3.4.1-rc2",
            "3.4.1-rc",
            "3.4.0",
            "3.4.0-rc",
            "3.4.0-beta3",
            "3.4.0-beta2",
            "3.4.0-beta1",
            "3.2.4",
            "3.3.0",
            "3.2.3",
            "3.2.2",
            "3.2.1",
            "3.2.0",
            "3.1.5",
            "3.2.0.rc",
            "3.2.0.beta",
            "3.2.0.alpha",
            "3.1.1",
            "3.0.3",
            "3.1.0_beta5",
            "3.1.0_beta4",
            "3.1.0_beta3",
            "3.1.0_beta2",
            "3.1.0_beta1",
            "3.0.1",
            "3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21629.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.384102043Z",
      "provider": "osv",
      "references": [
        "https://developer.joomla.org/security-centre/1027-20260301-core-acl-hardening-in-com-ajax.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2026-21629",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 502939,
  "published_at": "2026-04-01T10:16:15.79+00:00"
}