CVE-2023-22527 | A template injection vulnerability on older versions of Conf… | CVSS 10.0 CRITICAL

Description

A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data Center and Server are not affected by this vulnerability as it was ultimately mitigated during regular version updates. However, Atlassian recommends that customers take care to install the latest version to protect their instances from non-critical vulnerabilities outlined in Atlassian’s January Security Bulletin.

Metadata

CVE ID: CVE-2023-22527
State: PUBLISHED
Assigner: atlassian
Reserved: 2023-01-01 00:01 UTC
Published: 2024-01-16 05:00 UTC
Last updated: 2025-10-21 23:05 UTC
Primary CWE: CWE-74
CWE-74 Improper Neutralization of Special Elements in Output…
Vendor / Product: Atlassian / Confluence Data Center
Sources: cve.org · NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: ACTIVE
Automatable: yes
Tech. Impact: total

CISA Known Exploited Vulnerability

Vulnerability name: Atlassian Confluence Data Center and Server Template Injection Vulnerability
Vendor: Atlassian
Product: Confluence Data Center and Server
Added to KEV: 2024-01-24
Due date: 2024-02-14
Ransomware: Known use

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA description

Atlassian Confluence Data Center and Server contain an unauthenticated OGNL template injection vulnerability that can lead to remote code execution.

Affected products (2)

Vendor	Product	Platform	Versions
Atlassian	Confluence Data Center	—	< 8.0.0, >= 8.0.0, >= 8.1.0, >= 8.2.0 …
Atlassian	Confluence Server	—	< 8.0.0, >= 8.0.0, >= 8.1.0, >= 8.2.0 …

Weakness (CWE)

CWE	Source	Description
—	cna	RCE (Remote Code Execution)
CWE-74	adp	CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
10.0	CRITICAL	3.0	cna	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References (3)