How severe is CVE-2019-19456?

CVE-2019-19456 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-19456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19456?

CVE-2019-19456 affects Wowza Streaming Engine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19456?

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

When was CVE-2019-19456 published?

CVE-2019-19456 was published on 2020-05-18 and last updated on 2026-06-17.

CVE-2019-19456

CVE-2019-19456 is a medium-severity vulnerability in Wowza Streaming Engine with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wowza Streaming Engine
Published: 2020-05-18
Last modified: 2026-06-17

Description

A Reflected XSS was found in the server selection box inside the login page at: enginemanager/loginfailed.html in Wowza Streaming Engine <= 4.x.x. This issue was resolved in Wowza Streaming Engine 4.8.0.

Frequently asked questions

What is CVE-2019-19456?: A Reflected XSS was found in the server selection box inside the login page at: enginemanager/loginfailed.html in Wowza Streaming Engine <= 4.x.x. This issue was resolved in Wowza Streaming Engine 4.8.0.
How severe is CVE-2019-19456?: CVE-2019-19456 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-19456 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19456?: CVE-2019-19456 affects Wowza Streaming Engine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19456?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19456 published?: CVE-2019-19456 was published on 2020-05-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wowza:streaming_engine:*:*:*:*:*:*:*:*

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