How severe is CVE-2019-20408?

CVE-2019-20408 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-20408 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20408?

CVE-2019-20408 affects Atlassian Jira. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-20408?

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

When was CVE-2019-20408 published?

CVE-2019-20408 was published on 2020-07-01 and last updated on 2026-06-17.

CVE-2019-20408

CVE-2019-20408 is a medium-severity vulnerability in Atlassian Jira with a CVSS 3.x base score of 5.3. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Atlassian Jira
Published: 2020-07-01
Last modified: 2026-06-17

Description

The /plugins/servlet/gadgets/makeRequest resource in Jira before version 8.7.0 allows remote attackers to access the content of internal network resources via a Server Side Request Forgery (SSRF) vulnerability due to a logic bug in the JiraWhitelist class.

Frequently asked questions

What is CVE-2019-20408?: The /plugins/servlet/gadgets/makeRequest resource in Jira before version 8.7.0 allows remote attackers to access the content of internal network resources via a Server Side Request Forgery (SSRF) vulnerability due to a logic bug in the JiraWhitelist class.
How severe is CVE-2019-20408?: CVE-2019-20408 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-20408 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20408?: CVE-2019-20408 affects Atlassian Jira. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-20408?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20408 published?: CVE-2019-20408 was published on 2020-07-01 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-71204

Affected products (1)

cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*

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