The Stream plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.0.2 due to insufficient validation on the webhook feature. This makes it possible for authenticated attackers, with administrator-level access and above, to make web requests to arbitrary locations originating from the web application which can be used to query and modify information from internal services.
Conclusion & alert: CVE-2024-13879 is rated Low Risk (30/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-03-28 | 0.15% | 0.08% | -0.07% |
| 2 | 2025-12-14 | 0.05% | 0.15% | +0.10% |
| 3 | 2025-07-17 | — | 0.05% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
2.3 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||