Description

An OGNL injection vulnerability exists that allows an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance.

Affected versions:

version < 6.13.23
6.14.0 = version < 7.4.11
7.5.0 = version < 7.11.5
7.12.0 = version < 7.12.5

Remediation

Upgrade to the latest version of Confluence.
Fixed versions:

  • 6.13.23
  • 7.4.11
  • 7.11.6
  • 7.12.5
  • 7.13.0

    • References

    Confluence Server Webwork OGNL injection - CVE-2021-26084

    Confluence RCE

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    Severity

    High

    Classification

    CVE-2021-26084 CWE-917 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

    Tags

    Code Execution