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CVE-2019-8450

15
FAUCET Score

CVE-2019-8450 is a Cross-Site Scripting (XSS) vulnerability affecting Atlassian Jira Server versions before 7.13.6 and between 8.0.0 and 8.4.0. Specifically, it allows remote attackers with "manage custom fields" permissions to inject arbitrary HTML or JavaScript through a custom field's name within the Optimization plugin's templates. The vulnerability has a CVSS score of 4.8 (Medium), indicating a low-complexity attack requiring high privileges and user interaction, potentially leading to limited confidentiality and integrity impacts. The attack vector is network-based. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.13.0, < 7.13.6CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
>= 8.0.0, < 8.4.0CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
< 7.13.6CPE match
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
< 8.4.0CPE match
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 92nd percentile among its peer group of 4,937 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

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-69795
Issue TrackingVendor Advisory