The Meks Smart Social Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Meks Smart Social Widget in all versions up to, and including, 1.6.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Conclusion & alert: CVE-2024-0664 is rated Low Risk (30.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). 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 | 2026-04-21 | 0.13% | 0.16% | +0.03% |
| 2 | 2025-11-21 | 0.26% | 0.13% | -0.13% |
| 3 | 2025-11-18 | — | 0.26% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.4 | 3.1 | MEDIUM |
|
1.3 | 2.7 | [email protected] |
| 4.8 | 3.1 | MEDIUM |
|
1.7 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mekshq | meks_smart_social_widget | <= 1.6.3 | cpe:2.3:a:mekshq:meks_smart_social_widget:*:*:*:*:*:wordpress:*:* |