The plugmatter-optin-feature-box-lite plugin before 2.0.14 for WordPress has SQL injection via the wp-admin/admin-ajax.php?action=pmfb_mailchimp pmfb_tid parameter.
Conclusion & alert: CVE-2015-9451 is rated High Exploit Risk (84.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.37%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.66% over the last day, indicating growing attacker interest. 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 ↗ | |
| — | 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 | 0.71% | 2.37% | +1.66% |
| 2 | 2025-03-30 | 23.53% | 0.71% | -22.82% |
| 3 | 2025-03-29 | — | 23.53% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sizmic | plugmatter_optin_feature_box | < 2.0.14 | cpe:2.3:a:sizmic:plugmatter_optin_feature_box:*:*:*:*:*:wordpress:*:* |
| URL | Tags |
|---|---|
| http://cinu.pl/research/wp-plugins/mail_ec951d52aa603c9caaca8c7005b84004.html | Exploit Third Party Advisory |
| https://wordpress.org/plugins/plugmatter-optin-feature-box-lite/#developers | Product Release Notes |
| https://wpvulndb.com/vulnerabilities/8340 | Exploit Third Party Advisory |