THREATPORT/VULNERABILITY/CVE-2023-22522
HIGH SEVERITY

CVE-2023-22522

Confluence Data Center vulnerability

CVSS
8.8
EPSS
12.8%
EPSS pct
96th
Exploited
No known
This Template Injection vulnerability allows an authenticated attacker, including one with anonymous access, to inject unsafe user input into a Confluence page. Using this approach, an attacker is able to achieve Remote Code Execution (RCE) on an affected instance. Publicly accessible Confluence Data Center and Server versions as listed below are at risk and require immediate attention. See the advisory for additional details 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.
Affected vendor
Atlassian
Affected product
Confluence Data Center
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2023-12-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 12.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2023-22522

  • Confirm whether Atlassian Confluence Data Center is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-22522.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-22522

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-22522 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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