November 13, 2026 Follow Egret
CVE-2023-23752 · CVE record: PUBLISHED

[20230201] - Core - Improper access check in webservice endpoints

Joomla! Project Joomla! CMS

An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2024-01-08. Ransomware campaign use: Unknown.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date: 2024-01-29. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

Joomla! Project / Joomla! CMS

Default status: unaffected

  • affected: 4.0.0-4.2.7

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.99809,
  "percentile": 0.99958
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.99809,
  "percentile": 0.99958
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.99809,
  "percentile": 0.99958
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.99809,
  "percentile": 0.99958
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.99809,
  "percentile": 0.99958
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.99809,
  "percentile": 0.99958
}
06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.99809,
  "percentile": 0.99958
}
05 Nov 2026, 00:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "joomla\\!",
            "vendor": "joomla",
            "versions": [
              {
                "lessThanOrEqual": "4.2.7",
                "status": "affected",
                "version": "4.0.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-23752",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-24T20:52:45.656035Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2024-01-08",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23752"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-284",
                "description": "CWE-284 Improper Access Control",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:15:25.076Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23752"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2024-01-08T00:00:00.000Z",
            "value": "CVE-2023-23752 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:42:25.640Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://developer.joomla.org/security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Joomla! CMS",
          "vendor": "Joomla! Project",
          "versions": [
            {
              "status": "affected",
              "version": "4.0.0-4.2.7"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Zewei Zhang from NSFOCUS TIANJI Lab"
        }
      ],
      "datePublic": "2023-02-16T16:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "<p>An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints.</p>"
            }
          ],
          "value": "An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "ACL",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-26T05:05:03.342Z",
        "orgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586",
        "shortName": "Joomla"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://developer.joomla.org/security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "[20230201] - Core - Improper access check in webservice endpoints",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586",
    "assignerShortName": "Joomla",
    "cveId": "CVE-2023-23752",
    "datePublished": "2023-02-16T16:25:21.003Z",
    "dateReserved": "2023-01-17T19:02:50.302Z",
    "dateUpdated": "2026-02-26T05:05:03.342Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.99809,
  "percentile": 0.99958
}
03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.99809,
  "percentile": 0.99958
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.99809,
  "percentile": 0.99958
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2023-23752",
  "cwes": [
    "CWE-284"
  ],
  "dateAdded": "2024-01-08",
  "dueDate": "2024-01-29",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "https://developer.joomla.org/security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints.html;  https://nvd.nist.gov/vuln/detail/CVE-2023-23752",
  "product": "Joomla!",
  "requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
  "shortDescription": "Joomla! contains an improper access control vulnerability that allows unauthorized access to webservice endpoints.",
  "vendorProject": "Joomla!",
  "vulnerabilityName": "Joomla! Improper Access Control Vulnerability"
}
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