CVE-2019-16907

Name: CVE-2019-16907
Creator: NVD / NIST
Published: 2019-10-31T22:15:10.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2019-16907 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered in the Infosysta "In-App & Desktop Notifications" app 1.6.13_J8 for Jira. It is possible to obtain a list of all valid Jira usernames without authentication/authorization via the plugins/servlet/nfj/UserFilter?searchQuery=@ URI.. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

An issue was discovered in the Infosysta "In-App & Desktop Notifications" app 1.6.13_J8 for Jira. It is possible to obtain a list of all valid Jira usernames without authentication/authorization via the plugins/servlet/nfj/UserFilter?searchQuery=@ URI.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.57%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Infosysta	In-App \& Desktop Notifications	1.6.13_j8

References

http://packetstormsecurity.com/files/154993/Infosysta-Jira-1.6.13_J8-User-Name-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
https://seclists.org/bugtraq/2019/Nov/0Mailing List, Third Party Advisory
http://packetstormsecurity.com/files/154993/Infosysta-Jira-1.6.13_J8-User-Name-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
https://seclists.org/bugtraq/2019/Nov/0Mailing List, Third Party Advisory

Timeline

Published: Oct 31, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-16907?

How severe is CVE-2019-16907?

CVE-2019-16907 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2019-16907?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16907?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST