CVE-2019-8451

MediumPublished

The /plugins/servlet/gadgets/makeRequest resource in Jira before version 8.4.0 allows remote attackers to access the content of internal network resources...

Published: Sep 11, 2019
Updated: Sep 16, 2024
Assigning CNA: atlassian
Evidence observed: Aug 8, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

94.5%

High · next 30 days

Percentile: 99.9%
Model date: Oct 13, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The /plugins/servlet/gadgets/makeRequest resource in Jira before version 8.4.0 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.

Sources

Repository evidence: Files: 1 · Repositories: 1

1 Template

Jira <8.4.0 - Server-Side Request ForgeryTemplate
http/cves/2019/CVE-2019-8451.yaml
Nuclei Templates
DetectionEvidence observed: Sep 26, 2026Revision: 398450745eadRelated tool
Declared conditions
- network: http($.protocol_keys)
- verification: word($.matchers[*].type)
- oob: interactsh_reference($.template_text)

CVE-2019-8451PoC
https://jira.atlassian.com/browse/JRASERVER-69793
Jira-CVE-2019-8451PoC

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