Directory traversal vulnerability in the zM Ajax Login & Register plugin before 1.1.0 for WordPress allows remote attackers to include and execute arbitrary php files via a relative path in the template parameter in a load_template action to wp-admin/admin-ajax.php.
Conclusion & alert: CVE-2015-4153 is rated High Exploit Risk (74.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 45.89%, 97th percentile). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +13.09% 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 |
|---|---|---|---|---|
| 37200 | exploit_db | edb | 2015-06-04 | Exploit-DB ↗ |
| — | 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 | 2025-06-21 | 32.80% | 45.89% | +13.09% |
| 2 | 2025-05-25 | 27.26% | 32.80% | +5.54% |
| 3 | 2025-05-21 | — | 27.26% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2015-4153: 1 GLSA(s) (201512-10), 4 atom(s) (mail-client/thunderbird, mail-client/thunderbird-bin, www-client/firefox, www-client/firefox-bin); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-4153 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| zanematthew | zm_ajax_login_\&_register | <= 1.0.9 | cpe:2.3:a:zanematthew:zm_ajax_login_\&_register:*:*:*:*:*:wordpress:*:* |