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CVE Record

CVE-2019-19453: Wowza Streaming Engine before 4.8.5 allows XSS (issue 1 of 2).

Wowza Streaming Engine before 4.8.5 allows XSS (issue 1 of 2). An authenticated user, with access to the proxy license editing is able to insert a malicious payload that will be triggered in the main page of server settings. This issue was resolved in Wowza Streaming Engine 4.8.5.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2019-19453 is an authenticated cross-site scripting issue in Wowza Streaming Engine before 4.8.5. A user with access to proxy license editing could plant content that runs when the server settings main page is viewed. The main business concern is compromise of the management interface trust boundary, not unauthenticated remote takeover.

Executive priority

Treat this as a moderate-priority management-plane issue. Prioritize upgrade or access restriction where Wowza administration is shared, externally reachable, or used by high-privilege operators. There is no cited evidence of mass exploitation in the provided sources.

Technical view

The issue affects Wowza Streaming Engine before 4.8.5. Sources describe XSS through proxy license editing, triggered on the main server settings page. The record provides no CVSS vector, CWE, detailed affected CPEs, or exploit proof. Wowza states the issue was resolved in version 4.8.5.

Likely exposure

Exposure is likely limited to deployments running Wowza Streaming Engine before 4.8.5 where non-fully-trusted authenticated users can edit proxy license settings. Sources do not state whether internet-exposed administration panels increase prevalence, but exposed management interfaces would raise operational concern.

Exploitation context

The provided bundle does not cite active exploitation, and the CVE is not listed as KEV. Exploitation requires authenticated access with proxy license editing permissions. The impact depends on who later views the affected server settings page and what privileges their browser session has.

Researcher notes

Evidence is sparse: no CVSS, CWE, CPE list, or detailed advisory text is included in the bundle. The vulnerability is best tracked as authenticated XSS in a specific administrative workflow, fixed in Wowza Streaming Engine 4.8.5. Avoid assuming broader product impact without vendor confirmation.

Mitigation direction

  • Upgrade Wowza Streaming Engine to 4.8.5 or later.
  • Restrict proxy license editing to trusted administrators only.
  • Review Wowza guidance before applying operational workarounds.
  • Limit management interface access to approved networks and users.
  • Rotate or review admin sessions if suspicious settings changes are found.

Validation and detection

  • Inventory Wowza Streaming Engine versions across all environments.
  • Confirm each instance is running 4.8.5 or later.
  • Review who can access proxy license editing functions.
  • Check administrative logs for unexpected proxy license setting changes.
  • Verify management interfaces are not broadly exposed.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.