CVE-2023-22515

criticalpriority · act · 90OT risk · criticalKEV · exploitedEU KEV · CNWEPSS 0.992 · 100 %ileexploit · weaponizedDEEURUUS
grimoire priorityP0 · Act now
Exploitable?
Yes · in the wild
CISA KEV · 33 exploits · weaponized
Likely / severe?
99.2% (100th) EPSS
CVSS 9.8 · critical
Is it mine?
65 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2023-10-05remediate by 2023-10-13

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.

EU KEVflagged by CNWreported 2025-01-23patched 2023-10-04ransomware

Vulnerability in publicly accessible Confluence Data Center and Server instances that enables the creation of unauthorized Confluence administrator accounts and access to a Confluence instance

EPSS · scored 2026-10-24

Atlassian Confluence Data Center and Server Broken Access Control Vulnerability

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

10.0
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.010criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.010criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · security@atlassian.comexploitability 3.9 · impact 6
v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

ATT&CK techniques

ATT&CK techniques this enables or maps to.

05

exploits (33)

Public proof-of-concept and weaponised exploit code.

06

affected products (65)

Products and version ranges known to be affected.

showing 20 of 65
07

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2023-2555Atlassian Confluence Data Center and Server: Schwachstelle ermöglicht PrivilegieneskalationDeutsch2023-10-04csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Atlassian Confluence ausnutzen, um seine Privilegien zu erhöhen.

  • WID-SEC-W-2023-2700Atlassian Confluence: Mehrere SchwachstellenDeutsch2023-10-17csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Atlassian Confluence, Atlassian Jira Software, Atlassian Bitbucket und Atlassian Bamboo ausnutzen, um Administratorrechte zu erlangen, Informationen offenzulegen, beliebigen Programmcode auszuführen oder einen Denial of Service Zustand herbeizuführen.

08

also known as (4)

Other names and identifiers for this entity.

09

sources

Which sources assert this record, and when.

published 2023-10-04modified 2026-06-17
10

references (20)

External citations — patches, advisories, analysis.

scry

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