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    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.

    Published:Oct 4, 2023
    Last Modified:Mar 25, 2026
    EPS:Oct 4, 2023
    EPSS Score:0.94326
    CVSS Score:9.8

    CISA Notification

    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.

    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.

    Notes:

    No extra notes provided.

    Due Date
    Oct 13, 2023
    1064 days ago
    Alert Date
    Oct 5, 2023
    1072 days ago

    Affected Products

    Vendor
    Atlassian
    Product
    Confluence Data Center
    Vendor
    Atlassian
    Product
    Confluence Server

    Exploits

    http://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.htmlhttps://github.com/aaaademo/Confluence-EvilJarhttps://github.com/ad-calcium/CVE-2023-22515https://github.com/AIex-3/confluence-hackhttps://github.com/Arkha-Corvus/LetsDefend-SOC235-Atlassian-Confluence-Broken-Access-Control-0-Day-CVE-2023-22515-EventID-197https://github.com/C1ph3rX13/CVE-2023-22515https://github.com/CalegariMindSec/Exploit-CVE-2023-22515https://github.com/Chocapikk/CVE-2023-22515https://github.com/CyberSentinel321/cve-2023-22515-labhttps://github.com/dkq-k/CVE-2023-22515https://github.com/dkq-k/cve-2023-22515-1https://github.com/DsaHen/cve-2023-22515-exphttps://github.com/edsonjt81/CVE-2023-22515-Scan.https://github.com/ErikWynter/CVE-2023-22515-Scanhttps://github.com/fyx1t/NSE--CVE-2023-22515https://github.com/INTfinityConsulting/cve-2023-22515https://github.com/iveresk/CVE-2023-22515https://github.com/j3seer/CVE-2023-22515-POChttps://github.com/K4ptor/CVE-2023-22515https://github.com/kh4sh3i/CVE-2023-22515https://github.com/killvxk/CVE-2023-22515-joaoviictortihttps://github.com/Le1a/CVE-2023-22515https://github.com/LucasPDiniz/CVE-2023-22515https://github.com/Onedy1703/CVE-2023-22515-Confluencehttps://github.com/radzek15/CVE-2023-22515https://github.com/rxerium/CVE-2023-22515https://github.com/s1d6point7bugcrowd/CVE-2023-22515-checkhttps://github.com/s1incere/CVE-2023-22515https://github.com/spareack/CVE-2023-22515-NSEhttps://github.com/tranphuc2005/CVE-2023-22515https://github.com/vivigotnotime/CVE-2023-22515-Exploit-Scripthttps://github.com/Vulnmachines/confluence-cve-2023-22515https://github.com/xorbbo/cve-2023-22515https://github.com/youcannotseemeagain/CVE-2023-22515_RCE

    Common Weakness Enumeration

    CWE-20 Improper Input Validation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High