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Fencer Intel
medium 4.3

CVE-2018-20826 json

The inline-create rest resource in Jira before version 7.12.3 allows authenticated remote attackers to set the reporter in issues via a mis…

published 7y ago modified 4mo ago also EUVD-2018-13368

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

The inline-create rest resource in Jira before version 7.12.3 allows authenticated remote attackers to set the reporter in issues via a missing authorisation check.

Patch / fix

  • Atlassian Jira 7.12.3

Is CVE-2018-20826 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

0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • jira.atlassian.com https://jira.atlassian.com/browse/JRASERVER-69239 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N

Affected products

  • Atlassian Jira

Classification

Weakness

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.