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ExploitedIn CISA KEVFix available

CVE-2023-22515

Exploitation confirmed. First attested on 2023-10-05 by CISA-ADP, CISA KEV, GCVE · enisa-cnw-kev, GCVE · kevintel, GCVE · shadowserver.

  • Published2023-10-04
  • Fixed in8.5.2 · 8.4.3 · 8.3.3
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-10-0414:15CVE publishedNVD
  2. 2023-10-05Added to the CISA KEV catalogCISA KEV
  3. 2023-10-05Listed as exploited by GCVEGCVE
  4. 2023-10-05Exploitation first reportedCISA KEV
  5. 2023-12-0905:05SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-22515?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-22515?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Atlassian Confluence
BranchAffectedFixed in
8.5≥ 8.5.0, < 8.5.28.5.2
8.4≥ 8.4.0, < 8.4.38.4.3
8.x≥ 8.0.0, < 8.3.38.3.3
Atlassian Confluence
BranchAffectedFixed in
8.5≥ 8.5.0, < 8.5.28.5.2
8.4≥ 8.4.0, < 8.4.38.4.3
8.x≥ 8.0.0, < 8.3.38.3.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA2 products

As atlassian, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Atlassian Confluence Data Center
    Affected
    • = >= 8.0.0no fix stated
    • = >= 8.0.1no fix stated
    • = >= 8.0.2no fix stated
    • = >= 8.0.3no fix stated
    • = >= 8.1.3no fix stated
    • = >= 8.1.4no fix stated
    • = >= 8.2.0no fix stated
    • = >= 8.2.1no fix stated

    14 more version lines in the CVE record.

  • Atlassian Confluence Server
    Affected
    • = >= 8.0.0no fix stated
    • = >= 8.0.1no fix stated
    • = >= 8.0.2no fix stated
    • = >= 8.0.3no fix stated
    • = >= 8.1.3no fix stated
    • = >= 8.1.4no fix stated
    • = >= 8.2.0no fix stated
    • = >= 8.2.1no fix stated

    14 more version lines in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-10-20

Fix

  1. Update Atlassian Confluence to 8.5.2 · 8.4.3 · 8.3.3
  2. CISA’s 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.due 2023-10-13

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
20 repositories, unverifiedErikWynter/CVE-2023-22515-Scanj3seer/CVE-2023-22515-POCChocapikk/CVE-2023-22515ad-calcium/CVE-2023-22515kh4sh3i/CVE-2023-22515
PoC-in-GitHub
Metasploit modules
2 modulesexploit/multi/http/atlassian_confluence_rce_cve_2023_22515rank: excellentauxiliary/admin/http/atlassian_confluence_auth_bypassrank: normalModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-10-05
Patch Due Date
2023-10-13
Ransomware Use
Known
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.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-10-04
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-g458-xvmc-qg2r

Frequently asked questions

What is CVE-2023-22515?

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.

Is CVE-2023-22515 actively exploited?

Yes. CVE-2023-22515 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-10-13.

What is the CVSS score for CVE-2023-22515?

CVE-2023-22515 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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