How severe is CVE-2020-14188?

CVE-2020-14188 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-14188 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14188?

CVE-2020-14188 affects Atlassian Jira Create. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14188?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-14188 published?

CVE-2020-14188 was published on 2020-11-09 and last updated on 2026-06-17.

CVE-2020-14188

CVE-2020-14188 is a critical-severity vulnerability in Atlassian Jira Create with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atlassian Jira Create
Published: 2020-11-09
Last modified: 2026-06-17

Description

The preprocessArgs function in the Atlassian gajira-create GitHub Action before version 2.0.1 allows remote attackers to execute arbitrary code in the context of a GitHub runner by creating a specially crafted GitHub issue.

Frequently asked questions

What is CVE-2020-14188?: The preprocessArgs function in the Atlassian gajira-create GitHub Action before version 2.0.1 allows remote attackers to execute arbitrary code in the context of a GitHub runner by creating a specially crafted GitHub issue.
How severe is CVE-2020-14188?: CVE-2020-14188 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-14188 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14188?: CVE-2020-14188 affects Atlassian Jira Create. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14188?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-14188 published?: CVE-2020-14188 was published on 2020-11-09 and last updated on 2026-06-17.

References

https://github.com/atlassian/gajira-create/security/advisories/GHSA-4xqx-pqpj-9fqw

Affected products (1)

cpe:2.3:a:atlassian:jira_create:*:*:*:*:*:*:*:*