How severe is CVE-2019-16907?

CVE-2019-16907 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-16907 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16907?

CVE-2019-16907 affects Infosysta In-app & Desktop Notifications. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16907?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-16907 published?

CVE-2019-16907 was published on 2019-10-31 and last updated on 2026-06-17.

CVE-2019-16907

CVE-2019-16907 is a medium-severity vulnerability in Infosysta In-app & Desktop Notifications with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Infosysta In-app & Desktop Notifications
Published: 2019-10-31
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-16907?: 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.
How severe is CVE-2019-16907?: CVE-2019-16907 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-16907 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16907?: CVE-2019-16907 affects Infosysta In-app & Desktop Notifications. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16907?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16907 published?: CVE-2019-16907 was published on 2019-10-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:infosysta:in-app_\&_desktop_notifications:1.6.13_j8:*:*:*:*:jira:*:*

More vulnerabilities in Infosysta In-app & Desktop Notifications

CVE-2019-16906 — High (CVSS 7.5): An issue was discovered in the Infosysta "In-App & Desktop Notifications" app 1.6.13_J8 for Jira. By using…
CVE-2019-16908 — Medium (CVSS 5.3): An issue was discovered in the Infosysta "In-App & Desktop Notifications" app before 1.6.14_J8 for Jira. It is possible…
CVE-2019-16909 — Medium (CVSS 4.3): An issue was discovered in the Infosysta "In-App & Desktop Notifications" app before 1.6.14_J8 for Jira. It is possible…

All CVEs affecting Infosysta In-app & Desktop Notifications →

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