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CVE-2021-43944

HIGHCVSS 7.2/10EPSS 2.23%

Last modified

CVE-2021-43944 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. This issue exists to document that a security improvement in the way that Jira Server and Data Center use templates has been implemented. Affected versions of Atlassian Jira Server and Data Center allowed remote attackers with system administrator permissions to execute arbitrary code via Template Injection leading to Remote Code Execution (RCE) in the Email Templates feature. EPSS estimates a 2.23% chance of exploitation in the next 30 days.

Description

This issue exists to document that a security improvement in the way that Jira Server and Data Center use templates has been implemented. Affected versions of Atlassian Jira Server and Data Center allowed remote attackers with system administrator permissions to execute arbitrary code via Template Injection leading to Remote Code Execution (RCE) in the Email Templates feature. The affected versions are before version 8.13.15, and from version 8.14.0 before 8.20.3.

Metrics

CVSS 3.1
7.2/10

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

EPSS Probability
2.23%

80.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AtlassianJira Data Center< 8.13.15
AtlassianJira Data Center>= 8.14.0, < 8.20.3
AtlassianJira Server< 8.13.15
AtlassianJira Server>= 8.14.0, < 8.20.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-43944?
This issue exists to document that a security improvement in the way that Jira Server and Data Center use templates has been implemented. Affected versions of Atlassian Jira Server and Data Center allowed remote attackers with system administrator permissions to execute arbitrary code via Template Injection leading to Remote Code Execution (RCE) in the Email Templates feature. The affected versions are before version 8.13.15, and from version 8.14.0 before 8.20.3.
How severe is CVE-2021-43944?
CVE-2021-43944 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.23% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43944?
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-2021-43944?

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

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Source: NVD / NIST