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CVE-2023-22515 · CVE record: PUBLISHED

Atlassian Confluence Data Center and Server Broken Access Control Vulnerability

Atlassian Confluence Data Center, Atlassian Confluence Server

Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2023-10-05. Ransomware campaign use: Known.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.

CISA due date: 2023-10-13. 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

Atlassian / Confluence Data Center

Default status: Not specified

unaffected: < 8.0.0
affected: >= 8.0.0
affected: >= 8.0.1
affected: >= 8.0.2
affected: >= 8.0.3
affected: >= 8.1.3
affected: >= 8.1.4
affected: >= 8.2.0
affected: >= 8.2.1
affected: >= 8.2.2
affected: >= 8.2.3
affected: >= 8.3.0
affected: >= 8.3.1
affected: >= 8.3.2
affected: >= 8.4.0
affected: >= 8.4.1
affected: >= 8.4.2
affected: >= 8.5.0
affected: >= 8.5.1
unaffected: >= 8.3.3
unaffected: >= 8.4.3
unaffected: >= 8.5.2

Atlassian / Confluence Server

Default status: Not specified

unaffected: < 8.0.0
affected: >= 8.0.0
affected: >= 8.0.1
affected: >= 8.0.2
affected: >= 8.0.3
affected: >= 8.1.3
affected: >= 8.1.4
affected: >= 8.2.0
affected: >= 8.2.1
affected: >= 8.2.2
affected: >= 8.2.3
affected: >= 8.3.0
affected: >= 8.3.1
affected: >= 8.3.2
affected: >= 8.4.0
affected: >= 8.4.1
affected: >= 8.4.2
affected: >= 8.5.0
affected: >= 8.5.1
unaffected: >= 8.3.3
unaffected: >= 8.4.3
unaffected: >= 8.5.2

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": 0.9923,
  "percentile": 0.99936
}

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

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.9923,
  "percentile": 0.99936
}

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

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.9923,
  "percentile": 0.99936
}

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

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.9923,
  "percentile": 0.99936
}

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

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.9923,
  "percentile": 0.99936
}

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

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.99223,
  "percentile": 0.99935
}

06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.99223,
  "percentile": 0.99935
}

05 Nov 2026, 00:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:13:48.693Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://jira.atlassian.com/browse/CONFSERVER-92475"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-22515",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2023-12-09T05:05:17.297744Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2023-10-05",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22515"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-20",
                "description": "CWE-20 Improper Input Validation",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-25T14:56:37.404Z",
          "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-2023-22515"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Confluence Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "unaffected",
              "version": "< 8.0.0"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0"
            },
            {
              "status": "affected",
              "version": ">= 8.0.1"
            },
            {
              "status": "affected",
              "version": ">= 8.0.2"
            },
            {
              "status": "affected",
              "version": ">= 8.0.3"
            },
            {
              "status": "affected",
              "version": ">= 8.1.3"
            },
            {
              "status": "affected",
              "version": ">= 8.1.4"
            },
            {
              "status": "affected",
              "version": ">= 8.2.0"
            },
            {
              "status": "affected",
              "version": ">= 8.2.1"
            },
            {
              "status": "affected",
              "version": ">= 8.2.2"
            },
            {
              "status": "affected",
              "version": ">= 8.2.3"
            },
            {
              "status": "affected",
              "version": ">= 8.3.0"
            },
            {
              "status": "affected",
              "version": ">= 8.3.1"
            },
            {
              "status": "affected",
              "version": ">= 8.3.2"
            },
            {
              "status": "affected",
              "version": ">= 8.4.0"
            },
            {
              "status": "affected",
              "version": ">= 8.4.1"
            },
            {
              "status": "affected",
              "version": ">= 8.4.2"
            },
            {
              "status": "affected",
              "version": ">= 8.5.0"
            },
            {
              "status": "affected",
              "version": ">= 8.5.1"
            },
            {
              "status": "unaffected",
              "version": ">= 8.3.3"
            },
            {
              "status": "unaffected",
              "version": ">= 8.4.3"
            },
            {
              "status": "unaffected",
              "version": ">= 8.5.2"
            }
          ]
        },
        {
          "product": "Confluence Server",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "unaffected",
              "version": "< 8.0.0"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0"
            },
            {
              "status": "affected",
              "version": ">= 8.0.1"
            },
            {
              "status": "affected",
              "version": ">= 8.0.2"
            },
            {
              "status": "affected",
              "version": ">= 8.0.3"
            },
            {
              "status": "affected",
              "version": ">= 8.1.3"
            },
            {
              "status": "affected",
              "version": ">= 8.1.4"
            },
            {
              "status": "affected",
              "version": ">= 8.2.0"
            },
            {
              "status": "affected",
              "version": ">= 8.2.1"
            },
            {
              "status": "affected",
              "version": ">= 8.2.2"
            },
            {
              "status": "affected",
              "version": ">= 8.2.3"
            },
            {
              "status": "affected",
              "version": ">= 8.3.0"
            },
            {
              "status": "affected",
              "version": ">= 8.3.1"
            },
            {
              "status": "affected",
              "version": ">= 8.3.2"
            },
            {
              "status": "affected",
              "version": ">= 8.4.0"
            },
            {
              "status": "affected",
              "version": ">= 8.4.1"
            },
            {
              "status": "affected",
              "version": ">= 8.4.2"
            },
            {
              "status": "affected",
              "version": ">= 8.5.0"
            },
            {
              "status": "affected",
              "version": ">= 8.5.1"
            },
            {
              "status": "unaffected",
              "version": ">= 8.3.3"
            },
            {
              "status": "unaffected",
              "version": ">= 8.4.3"
            },
            {
              "status": "unaffected",
              "version": ">= 8.5.2"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "an Atlassian customer"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. \r\n\r\nAtlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "BASM (Broken Authentication & Session Management)",
              "lang": "en",
              "type": "BASM (Broken Authentication & Session Management)"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-20T16:00:01.026Z",
        "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66",
        "shortName": "atlassian"
      },
      "references": [
        {
          "url": "http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html"
        },
        {
          "url": "https://confluence.atlassian.com/display/KB/FAQ+for+CVE-2023-22515"
        },
        {
          "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1295682276"
        },
        {
          "url": "https://jira.atlassian.com/browse/CONFSERVER-92475"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66",
    "assignerShortName": "atlassian",
    "cveId": "CVE-2023-22515",
    "datePublished": "2023-10-04T14:00:00.820Z",
    "dateReserved": "2023-01-01T00:01:22.331Z",
    "dateUpdated": "2026-03-25T14:56:37.404Z",
    "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": 0.99223,
  "percentile": 0.99935
}

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

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.99223,
  "percentile": 0.99936
}

03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.99223,
  "percentile": 0.99936
}

03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2023-22515",
  "cwes": [],
  "dateAdded": "2023-10-05",
  "dueDate": "2023-10-13",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Known",
  "notes": "https://confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html;  https://nvd.nist.gov/vuln/detail/CVE-2023-22515",
  "product": "Confluence Data Center and Server",
  "requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.",
  "shortDescription": "Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.",
  "vendorProject": "Atlassian",
  "vulnerabilityName": "Atlassian Confluence Data Center and Server Broken Access Control Vulnerability"
}

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