Cross-site scripting (XSS) vulnerability in nowosci.php in BestShopPro allows remote attackers to inject arbitrary web script or HTML via the str parameter.
Conclusion & alert: CVE-2011-4812 is rated Exploit Available (53.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.42%). Core evidence: 3 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 |
|---|---|---|---|---|
| 18063 | exploit_db | edb | 2011-11-02 | 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 | 2026-04-02 | 0.51% | 0.42% | -0.09% |
| 2 | 2026-01-14 | 0.23% | 0.51% | +0.29% |
| 3 | 2025-11-04 | — | 0.23% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| bst | bestshoppro | — | cpe:2.3:a:bst:bestshoppro:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://secunia.com/advisories/46662 | Vendor Advisory |
| http://www.exploit-db.com/exploits/18063 | Exploit |
| http://www.osvdb.org/76880 | Exploit |