A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Older versions of Atlassian Confluence Data Center and Server are affected by a template injection flaw that lets an unauthenticated attacker run arbitrary code on the server. Customers running affected older releases need to act immediately, while the most recent supported versions are not impacted.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Atlassian Confluence Data Center
From 8.0.0; From 8.1.0; From 8.2.0; From 8.3.0; From 8.4.0; From 8.5.0; From 8.5.1; From 8.5.2; From 8.5.3
- Atlassian Confluence Server
From 8.0.0; From 8.1.0; From 8.2.0; From 8.3.0; From 8.4.0; From 8.5.0; From 8.5.1; From 8.5.2; From 8.5.3
References 3
confluence.atlassian.com
jira.atlassian.com
packetstormsecurity.com
Questions about CVE-2023-22527
What does this mean?
A template injection flaw lets an unauthenticated attacker achieve remote code execution (RCE) on an affected Confluence instance. CVSS scores it 10 (critical).Source: jira.atlassian.com
Am I affected, and how do I check?
Confluence Data Center and Confluence Server versions 8.0.0 through 8.5.3 are listed as affected. The checked facts state that 7.19.x LTS versions are not affected. Compare the installed version number with these ranges.Source: jira.atlassian.com
What should I do about it?
The checked facts do not list a fixed version, so no upgrade target can be named from them. Check the vendor advisory for the fixed release.Source: jira.atlassian.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2024-01-24, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts include no workaround or mitigation. Consult the vendor advisory for interim steps while no fix is available.Source: jira.atlassian.com