Security readout for executives and security teams
Plain-English summary
CVE-2019-19385 is a cross-site scripting issue in FusionPBX 4.4.1. A malicious value in the app_uuid parameter could cause script or HTML to run in a user's browser. Business impact depends on who can reach the affected dialplans page and what privileges their browser session has.
Executive priority
Prioritize remediation for internet-exposed or broadly accessible FusionPBX administration interfaces. The issue is not rated and not KEV-listed in the supplied data, but XSS in PBX administration can still create meaningful operational risk.
Technical view
The CVE describes XSS in app/dialplans/dialplans.php through the app_uuid parameter in FusionPBX 4.4.1. The source bundle includes a public proof reference and an upstream commit reference. No CVSS score, CWE, or complete structured affected-product data is provided.
Likely exposure
Exposure is most likely for organizations running FusionPBX 4.4.1 with the dialplans interface reachable by untrusted users or lower-trust authenticated users. The CVE record's structured affected section is incomplete, so confirm versions against vendor history.
Exploitation context
The source bundle includes a public gist reference and an upstream code commit, but it does not show CISA KEV listing or active exploitation. Treat exploitability as publicly documented, not proven in-the-wild from the supplied evidence.
Researcher notes
The available evidence is sparse: description, public gist, and a fixing commit reference. Avoid assuming affected versions beyond FusionPBX 4.4.1 unless confirmed by repository history or vendor release notes.
Mitigation direction
- Update FusionPBX to a release that includes the referenced upstream fix.
- If the fixed release is unclear, check FusionPBX maintainer guidance before deploying changes.
- Restrict access to FusionPBX administrative pages to trusted networks and users.
- Review logs for suspicious requests involving the app_uuid parameter.
Validation and detection
- Inventory FusionPBX deployments and identify any running version 4.4.1.
- Confirm whether the deployed code includes commit fe504b83db80ebae30c982770f0f0b200b88cbe9.
- Review the dialplans page handling of app_uuid for proper sanitization or output encoding.
- Check whether the dialplans interface is exposed beyond intended administrative users.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-19385 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://gist.github.com/xax007/28e7326acfae677be0b351216888e522CVE reference · x_refsource_MISC
- https://github.com/fusionpbx/fusionpbx/commit/fe504b83db80ebae30c982770f0f0b200b88cbe9CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.