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CVE-2019-8451

78
FAUCET Score

CVE-2019-8451 is a Server-Side Request Forgery (SSRF) vulnerability affecting Atlassian Jira Server versions prior to 8.4.0, stemming from a logic flaw in the JiraWhitelist class. This flaw allows unauthenticated remote attackers to access internal network resources. With a CVSS score of 6.5 (Medium), it has a low attack complexity and no user interaction required, potentially leading to information disclosure and limited integrity impact. While there is no known active exploitation in the KEV catalog or public Metasploit modules, a Nuclei template exists, and it has garnered significant community discussion and media coverage, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.6.0, < 8.4.0CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
< 8.4.0CPE match
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
94.45%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2019-8451 · Jul 6, 2020
This CVE's current EPSS score of 0.9445 is in the 100th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jira.atlassian.com / browse/JRASERVER-69793
Issue TrackingVendor Advisory