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October 9, 2026

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CVE-2023-22527NVD

Vulnerability Summary

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.
Severity Level
CRITICAL(10.0)
Published Date
Jan 16, 2024
Last Modified
Oct 21, 2025
PoC
Available(Metasploit, Nuclei)
Exploitation Status
ACTIVE
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
N/A
CVSS v3.0 Base Metrics — Score 10.0 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Atlassian Confluence Data Center >= >= 8.0.0
  • Atlassian Confluence Data Center >= >= 8.1.0
  • Atlassian Confluence Data Center >= >= 8.2.0
  • Atlassian Confluence Data Center >= >= 8.3.0
  • Atlassian Confluence Data Center >= >= 8.4.0
  • Atlassian Confluence Data Center >= >= 8.5.0
  • Atlassian Confluence Data Center >= >= 8.5.1
  • Atlassian Confluence Data Center >= >= 8.5.2
  • Atlassian Confluence Data Center >= >= 8.5.3
  • Atlassian Confluence Server >= >= 8.0.0
  • Atlassian Confluence Server >= >= 8.1.0
  • Atlassian Confluence Server >= >= 8.2.0
  • Atlassian Confluence Server >= >= 8.3.0
  • Atlassian Confluence Server >= >= 8.4.0
  • Atlassian Confluence Server >= >= 8.5.0
  • Atlassian Confluence Server >= >= 8.5.1
  • Atlassian Confluence Server >= >= 8.5.2
  • Atlassian Confluence Server >= >= 8.5.3
Patched Versions
Not provided by cveorg for this CVE.
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References