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Fencer Intel
medium 6.5

CVE-2019-8451 json

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

published 7y ago modified 4mo ago also EUVD-2019-17841

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
94.5%
EPSS 94.5% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known, plus a Nuclei check

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.

Patch / fix

  • Atlassian Jira 8.4.0

Is CVE-2019-8451 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

94.45% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template Jira <8.4.0 - Server-Side Request Forgery nuclei detection template

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N

Affected products

  • Atlassian Jira

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.