Possible Atlassian Confluence CVE-2023-22515 Setup Recovery Exploitation via Webserver (via webserver)

PremiumReviewedSigma · High · v1
Category
webserver
Author
HuntRule
Published
2026-07-28
Updated
2026-08-28

ATT&CK techniques

Initial Access → Persistence
  1. Recon

  2. Resource Dev

  3. Execution

  4. Priv Esc

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects HTTP requests that re-enable the Confluence setup workflow by toggling setupComplete to false and then hitting the setup administrator and finish-setup actions, matching exploitation of the broken access control flaw CVE-2023-22515. It is associated with attacks against internet-facing Atlassian Confluence servers to create rogue administrator accounts. Because these endpoints should never be reachable on a configured instance, this pattern strongly indicates active exploitation.

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Possible Atlassian Confluence CVE-2023-22515 Setup Recovery Exploitation via Webserver (via webserver)
Pivot detection · T1190 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.