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CVE-2019-16907

19
FAUCET Score

CVE-2019-16907 is a vulnerability affecting the Infosysta "In-App & Desktop Notifications" app version 1.6.13_J8 for Jira, allowing unauthenticated attackers to enumerate valid Jira usernames. This medium-severity vulnerability (CVSS 5.3) requires no authentication or user interaction, enabling information disclosure of usernames. Despite its potential for reconnaissance, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.6.13_j8CPE matchmatch criteria
cpe:2.3:a:infosysta:in-app_\&_desktop_notifications:1.6.13_j8:*:*:*:*:jira:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 56th percentile among its peer group of 23,701 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

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

packetstormsecurity.com / files/154993/Infosysta-Jira-1.6.13_J8-User-Name-Disclosure.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / bugtraq/2019/Nov/0
Mailing ListThird Party Advisory