How severe is CVE-2019-16906?

CVE-2019-16906 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-16906 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16906?

CVE-2019-16906 affects Infosysta In-app & Desktop Notifications. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16906?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-16906 published?

CVE-2019-16906 was published on 2019-10-31 and last updated on 2026-06-17.

CVE-2019-16906

CVE-2019-16906 is a high-severity vulnerability in Infosysta In-app & Desktop Notifications with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (79th 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. By using plugins/servlet/nfj/PushNotification?username= with a modified username, a different user's notifications can be read without authentication/authorization. These notifications are then no longer displayed to the normal user.

Frequently asked questions

What is CVE-2019-16906?: An issue was discovered in the Infosysta "In-App & Desktop Notifications" app 1.6.13_J8 for Jira. By using plugins/servlet/nfj/PushNotification?username= with a modified username, a different user's notifications can be read without authentication/authorization. These notifications are then no longer displayed to the normal user.
How severe is CVE-2019-16906?: CVE-2019-16906 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-16906 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16906?: CVE-2019-16906 affects Infosysta In-app & Desktop Notifications. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16906?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-16906 published?: CVE-2019-16906 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-2019-16908 — 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-2019-16907 — Medium (CVSS 5.3): An issue was discovered in the Infosysta "In-App & Desktop Notifications" app 1.6.13_J8 for Jira. It is possible to…
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 →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →