Wowza Streaming Engine 4.8.0 and earlier from multiple authenticated XSS vulnerabilities via the (1) customList%5B0%5D.value field in enginemanager/server/serversetup/edit_adv.htm of the Server Setup configuration or the (2) host field in enginemanager/j_spring_security_check of the login form. This issue was resolved in Wowza Streaming Engine 4.8.5.
Conclusion & alert: CVE-2019-7655 is rated Exploit Available (56.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.95%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.55% | 0.95% | +0.40% |
| 2 | 2026-05-24 | 0.65% | 0.55% | -0.10% |
| 3 | 2025-11-21 | — | 0.65% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.4 | 3.1 | MEDIUM |
|
2.3 | 2.7 | [email protected] |
| 3.5 | 2.0 | LOW |
|
6.8 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| wowza | streaming_engine | <= 4.8.0 | cpe:2.3:a:wowza:streaming_engine:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-7655-XSS-Wowza | Exploit Third Party Advisory |
| https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-7655.txt | Third Party Advisory |
| https://www.wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes | Release Notes Vendor Advisory |
| https://www.wowza.com/pricing/installer | Vendor Advisory |