PHPJabbers Hotel Booking System v4.0 is vulnerable to HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.
Conclusion & alert: CVE-2023-51299 is rated Exploit Available (50.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.13%). Core evidence: 1 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 |
|---|---|---|---|---|
| — | 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 | 2026-04-01 | 0.17% | 0.13% | -0.04% |
| 2 | 2026-03-31 | 0.10% | 0.17% | +0.07% |
| 3 | 2026-03-30 | — | 0.10% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| phpjabbers | hotel_booking_system | 4.0 | cpe:2.3:a:phpjabbers:hotel_booking_system:4.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://packetstorm.news/files/id/176488 | Exploit Third Party Advisory VDB Entry |
| https://www.phpjabbers.com/hotel-booking-system/#sectionDemo | Product |
| http://packetstormsecurity.com/files/176488/PHPJabbers-Hotel-Booking-System-4.0-Cross-Site-Scripting-HTML-Injection.html |