How severe is CVE-2019-20106?

CVE-2019-20106 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2019-20106 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20106?

CVE-2019-20106 primarily affects Atlassian Jira. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20106?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-20106 published?

CVE-2019-20106 was published on 2020-02-06 and last updated on 2026-06-17.

CVE-2019-20106

CVE-2019-20106 is a medium-severity vulnerability in Atlassian Jira with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Atlassian Jira
Published: 2020-02-06
Last modified: 2026-06-17

Description

Comment properties in Atlassian Jira Server and Data Center before version 7.13.12, from 8.0.0 before version 8.5.4, and 8.6.0 before version 8.6.1 allows remote attackers to make comments on a ticket to which they do not have commenting permissions via a broken access control bug.

Frequently asked questions

What is CVE-2019-20106?: Comment properties in Atlassian Jira Server and Data Center before version 7.13.12, from 8.0.0 before version 8.5.4, and 8.6.0 before version 8.6.1 allows remote attackers to make comments on a ticket to which they do not have commenting permissions via a broken access control bug.
How severe is CVE-2019-20106?: CVE-2019-20106 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2019-20106 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20106?: CVE-2019-20106 primarily affects Atlassian Jira. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20106?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20106 published?: CVE-2019-20106 was published on 2020-02-06 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-70543

Affected products (6)

cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_data_center:8.6.0:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:8.6.0:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*

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