In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

Published: 2021-08-30

CVSS: 9.8

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Download CVE-2021-26084 POC (Proof-of-Concept) here:

Tip: Download official Tor Browser at https://www.torproject.org/download/ to access .onion links.

https://connollyfinan.ie/poc-180-cve-2022-3236/

https://connollyfinan.ie/poc-320-cve-2017-0809/

https://connollyfinan.ie/poc-323-cve-2025-41243/

https://connollyfinan.ie/poc-414-cve-2021-22204/