CVE-2023-22515KEV · OVERDUE

Atlassian Confluence Data Center and Server Broken Access Control Vulnerability

Critical · published October 4, 2023

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.

1107
days past CISA
deadline
CVSS v3.0
10.0
EPSS
99%
Percentile
99.9
In the wild
Confirmed
What it is

🚨 A sneaky flaw lets attackers create unauthorized admin accounts in Confluence, and it's been exploited in the wild! 🔥 Think of this like someone cracking the front desk at a hotel, getting themselves an all-access keycard to every room and service without anyone noticing. It's a big breach of trust and security! With this vulnerability, attackers could gain full control over your Confluence instance, allowing them to access sensitive data, modify content, and potentially escalate further attacks. Imagine an unauthorized guest rearranging your entire hotel — this could lead to catastrophic data leaks and operational chaos!

Put simply

Think of this like someone cracking the front desk at a hotel, getting themselves an all-access keycard to every room and service without anyone noticing. It's a big breach of trust and security! This vulnerability allows external attackers to exploit a weakness in Confluence Data Center and Server instances, enabling them to create admin accounts without proper authorization, granting them extensive access and control.

What to do

With this vulnerability, attackers could gain full control over your Confluence instance, allowing them to access sensitive data, modify content, and potentially escalate further attacks. Imagine an unauthorized guest rearranging your entire hotel — this could lead to catastrophic data leaks and operational chaos! Immediate action is crucial: ensure you update to the latest Confluence version as specified by Atlassian. Also, review your access controls and consider implementing additional monitoring to detect unauthorized changes. Don't forget to assess any logs for suspicious activity! You've got this! By taking swift action, you can strengthen your defenses and keep your Confluence site safe! 🛡️

The record
Technical detail
CVSS v3.0
10.0 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99223 · 99.9th percentile
Published
2023-10-04T14:00Z
KEV added
2023-10-05 · due 2023-10-13
EPSS history
Timeline
  • 05 OCT 00:00Z
    Added to CISA KEV — remediate by Oct 13
    kev
  • 04 OCT 14:00Z
    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…
    cvelistv5