CVE-2021-39114

HIGHCVSS 8.8/10EPSS 1.66%

Last modified

CVE-2021-39114 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to execute arbitrary Java code or run arbitrary system commands by injecting an OGNL payload. 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.. EPSS estimates a 1.66% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to execute arbitrary Java code or run arbitrary system commands by injecting an OGNL payload. 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.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
1.66%

73.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AtlassianConfluence Data Center< 6.13.23
AtlassianConfluence Data Center>= 6.14.0, < 7.4.11
AtlassianConfluence Data Center>= 7.5.0, < 7.11.6
AtlassianConfluence Data Center>= 7.12.0, < 7.12.5
AtlassianConfluence Server< 6.13.23
AtlassianConfluence Server>= 6.14.0, < 7.4.11
AtlassianConfluence Server>= 7.5.0, < 7.11.6
AtlassianConfluence Server>= 7.12.0, < 7.12.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-39114?
Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to execute arbitrary Java code or run arbitrary system commands by injecting an OGNL payload. 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.
How severe is CVE-2021-39114?
CVE-2021-39114 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.66% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39114?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39114?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST